File "fertilization-blastocyst.html"
Path: /ThinkIB/bio_psych/biology/page/16365/fertilization-blastocysthtml
File size: 108.68 KB
MIME-type: text/html
Charset: utf-8
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Google Tag Manager -->
<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-K5VSFSN');
</script>
<!-- End Google Tag Manager -->
<meta http-equiv="x-ua-compatible" content="IE=Edge">
<title>DP Biology: Fertilization & blastocyst</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="robots" content="none"><meta name="robots" content="noindex, nofollow">
<!-- Removed by WebCopy --><!--<base href="https://www.student.thinkib.net">--><!-- Removed by WebCopy --><meta name="keywords" content="separate tags by commasBiology, ThinkIB.net, InThinking, IB, IBDP, IBMYP"><meta name="description" content="Fertilization & blastocyst. ThinkIB.net Biology is an InThinking website.">
<link href="../../../css/bootstrap.min.css" rel="stylesheet" media="screen">
<link href="../../../css/font-awesome-4.7.0/css/font-awesome.min.css" rel="stylesheet">
<link href="../../../css/top-nav.min.css?v=202211301945" rel="stylesheet" media="screen">
<link href="../../../css/style.min.css?v=20230110" rel="stylesheet" media="screen">
<link href="../../../css/style-ib.min.css?v=20230105" rel="stylesheet" media="screen">
<link rel="stylesheet" type="text/css" href="../../../js/jq-fancybox/jquery.fancybox.min.css">
<link href="../../../js/jq-fancybox/jquery.fancybox.min.css" type="text/css" rel="stylesheet">
<link rel="stylesheet" href="../../../css/side-nav.min.css?v=20220520"><link rel="stylesheet" href="../../../assets/css/ckeditor5-custom.css" type="text/css"><link rel="stylesheet" href="../../../css/std-access.min.css?v=20220504"><link rel="stylesheet" href="../../../css/snippets.min.css?v=202210181500"><link rel="stylesheet" href="../../../css/article.min.css?v=202212151220"><script src="../../../js/localdates.min.js?v=202009290900"></script><script src="../../../js/ifvisible.min.js"></script><script>ifvisible.setIdleDuration(300);</script><script>var tibSitename = "biology";</script>
<script>
const SITE_TAG = "ib"
const SITE_WEB = "ThinkIB.net"
const SITE_DOMAIN = "www.thinkib.net"
const SITE_URI = "https://thinkib.net"
const SITE_CLIENT_CODE = "TIB000001"
let imageThinker = "img/header-thinker-ib.svg";
let imageStudent = "img/header-student-thinkib.svg";
</script>
<script>var userHash = "IBDocs(2)", userTicket = "IBDocs(2)";</script><script src="../../../js/user/local-stats.min.js?v=202102101800"></script><link rel="apple-touch-icon-precomposed" sizes="57x57" href="../../../img/favicon/student-thinkib/apple-touch-icon-57x57.png"><link rel="apple-touch-icon-precomposed" sizes="114x114" href="../../../img/favicon/student-thinkib/apple-touch-icon-114x114.png"><link rel="apple-touch-icon-precomposed" sizes="72x72" href="../../../img/favicon/student-thinkib/apple-touch-icon-72x72.png"><link rel="apple-touch-icon-precomposed" sizes="144x144" href="../../../img/favicon/student-thinkib/apple-touch-icon-144x144.png"><link rel="apple-touch-icon-precomposed" sizes="60x60" href="../../../img/favicon/student-thinkib/apple-touch-icon-60x60.png"><link rel="apple-touch-icon-precomposed" sizes="120x120" href="../../../img/favicon/student-thinkib/apple-touch-icon-120x120.png"><link rel="apple-touch-icon-precomposed" sizes="76x76" href="../../../img/favicon/student-thinkib/apple-touch-icon-76x76.png"><link rel="apple-touch-icon-precomposed" sizes="152x152" href="../../../img/favicon/student-thinkib/apple-touch-icon-152x152.png"><link rel="icon" type="image/png" href="../../../img/favicon/student-thinkib/favicon-196x196.png" sizes="196x196"><link rel="icon" type="image/png" href="../../../img/favicon/student-thinkib/favicon-96x96.png" sizes="96x96"><link rel="icon" type="image/png" href="../../../img/favicon/student-thinkib/favicon-32x32.png" sizes="32x32"><link rel="icon" type="image/png" href="../../../img/favicon/student-thinkib/favicon-16x16.png" sizes="16x16"><link rel="icon" type="image/png" href="../../../img/favicon/student-thinkib/favicon-128.png" sizes="128x128"><meta name="application-name" content=" "><meta name="msapplication-TileColor" content="#FFFFFF"><meta name="msapplication-TileImage" content="https://www.student.thinkib.net/img/favicon/student-thinkib/mstile-144x144.png"><meta name="msapplication-square70x70logo" content="https://www.student.thinkib.net/img/favicon/student-thinkib/mstile-70x70.png"><meta name="msapplication-square150x150logo" content="https://www.student.thinkib.net/img/favicon/student-thinkib/mstile-150x150.png"><meta name="msapplication-wide310x150logo" content="https://www.student.thinkib.net/img/favicon/student-thinkib/mstile-310x150.png"><meta name="msapplication-square310x310logo" content="https://www.student.thinkib.net/img/favicon/student-thinkib/mstile-310x310.png">
</head>
<body onunload="" class="student-access">
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-K5VSFSN" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<!-- End Google Tag Manager (noscript) -->
<div id="header">
<div class="wmap">
<div class="layout-wrapper">
<div class="container-fluid">
<div class="pull-right visible-phone">
<a href="https://www.inthinking.net">
<img src="../../../img/header-logo.svg" style="height: 45px; width: auto">
</a>
</div>
<div class="visible-phone" style="clear:both;"></div>
<div class="pull-left">
<h1><a href="../../../biology.html?lg=50366"><span style="font-size: .8em;">IBDP Biology - Student pages</span></a></h1>
<p class="slogan hidden-phone"><span class="slogan"><em>InThinking</em> Subject Sites for teachers & their classes</span></p>
<p class="hidden-phone"><em>Group: IB Docs (2) Team<br>Teacher: IB Docs (2) Team</em></p>
</div>
<div class="pull-right text-right">
<a class="hidden-phone" href="https://www.inthinking.net">
<img src="../../../img/header-logo.svg" style="height: 70px; width: auto">
</a>
<div class="search"><a href="#" class="toggle-menu-search" data-toggle="dropdown" title="Search"><i class="fa fa-2x fa-search"></i></a></div>
</div>
</div>
</div>
</div>
</div>
<div id="topmenu">
<div class="layout-wrapper">
<div>
<nav class="top-nav"><ul class="level-0"><li><a href="../../../biology.html?lg=50366"><i class="fa fa-home"></i> Home</a></li><li><a href="../16847/start-here.html">Start here</a></li><li><a href="../16976/sl-core-.html">SL Core </a></li><li class="selected"><a href="../17178/additional-hl.html">Additional HL</a></li><li><a href="../17193/options-.html">Options </a></li><li><a href="../17622/the-investigation.html">The Investigation</a></li><li><a href="../18404/quizzes-tests-revision.html">Quizzes tests & revision</a></li><li><a href="../7428/ib-core.html">IB Core</a></li></ul></nav>
</div>
</div>
</div>
<nav id="nav-menu-search" class="shadow-md" style="display: none;">
<div class="layout-wrapper">
<form class="form-inline" role="search" method="get" action="biology/search">
<input id="nav-search" name="s" type="search" placeholder="Search Biology..." value="">
<button class="btn btn-sm btn-primary" type="submit">
Search
</button>
<a href="#" class="toggle-menu-search" title="Close">
<i class="fa fa-lg fa-times gray"></i>
</a>
</form>
</div>
</nav>
<div class="layout-wrapper">
<div id="container" class="container-fluid">
<div id="content">
<div class="row-fluid">
<div id="left-column" class="span3"> <div id="userbox">
<div class="dropdown" style="display: flex; align-items: center;">
<a href="#" data-toggle="dropdown" class="dropdown-toggle btn">
<img style="width: 16px; height: 16px; margin: -2px 0 0 0;" src="../../../img/user/t/IBRR.jpg">
IB Docs (2) Team <i class="fa fa-caret-down"></i>
</a>
<ul class="dropdown-menu" id="menu1">
<li><a href="../../../biology.html?lg=50366"><i class="fa fa-caret-right fixwidth gray"></i> IBDP Biology</a></li><li><a href="https://www.student.thinkib.net/psychology?lg=28278"><i class="fa fa-caret-right fixwidth gray"></i> IBDP Psychology</a></li>
</ul>
</div>
</div><br><div id="topicsnav" style="margin: 0; padding: 0px;"> <div class="row-fluid accordion-group" style="border: 0px; margin-bottom: 0px;"> <div style="padding: 6px 4px 6px 8px; background: #204a87;"> <a class="accordion-toggle std-header" style="color: #fff; text-shadow: 1px 1px 1px #444; padding: 0px; text-decoration: none; font-size: 16px; font-weight: 400;" data-toggle="collapse" data-parent="#topicsnav" href="#side-box-topics-list"> <i class="fa fa-caret-right fa-rotate-90 white" style="margin-left: 4px;"></i> Topics </a> <span id="sidetreecontrol"> <a title="Collapse all" rel="collapse" href="#"> <i class="fa fa-minus-circle"></i> </a> <a title="Expand all" rel="expand" href="#"> <i class="fa fa-plus-circle"></i> </a> </span> </div> <div id="side-box-topics-list" class="accordion-body in collapse"> <div class="accordion-inner" style="line-height: 1.7em; padding: 0;"> <nav class="side-nav" id="sidemenu"><ul class="level-0 always-expanded"><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="../16847/start-here.html" title="Start here">Start here</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../32856/introduction-to-the-biology-site-.html" title="Introduction to the Biology site ">Introduction to the Biology site </a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../26662/video-introduction-to-the-site.html" title="Video introduction to the site">Video introduction to the site</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../26747/video-introduction-to-learning-activities.html" title="Video introduction to Learning activities">Video introduction to Learning activities</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../32632/distance-learning-using-inthinking-biology.html" title="Distance learning using InThinking Biology">Distance learning using InThinking Biology</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../32634/setting-assignments-in-student-access.html" title="Setting assignments - in student access">Setting assignments - in student access</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../27037/student-access-teachers-quiz.html" title="Student access teachers' quiz">Student access teachers' quiz</a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17618/text-books-for-ib-biology-.html" title="Text books for IB Biology ">Text books for IB Biology </a></li></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="../16976/sl-core-.html" title="SL Core ">SL Core </a></li><ul class="level-1 "><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../16978/cells-activities-for-learning-.html" title="Cells: Activities for Learning ">Cells: Activities for Learning </a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17611/measuring-equipment.html" title="Measuring Equipment">Measuring Equipment</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../21364/measuring-equipment-model-answers.html" title="Measuring equipment - model answers">Measuring equipment - model answers</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17084/cell-theory-investigation.html" title="Cell Theory Investigation">Cell Theory Investigation</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17087/measuring-size-in-biology.html" title="Measuring size in Biology">Measuring size in Biology</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17083/calculating-magnification-and-size.html" title="Calculating Magnification and Size">Calculating Magnification and Size</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17085/sa-to-volume-practical-activity.html" title="SA to Volume practical activity">SA to Volume practical activity</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19586/measuring-equipment-ia-skills-training.html" title="Measuring Equipment - IA skills training">Measuring Equipment - IA skills training</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17262/being-multicellular.html" title="Being Multicellular">Being Multicellular</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17086/thinking-about-stem-cells.html" title="Thinking about stem cells">Thinking about stem cells</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17090/eukaryotic-cell-ultrastructure.html" title="Eukaryotic Cell Ultrastructure">Eukaryotic Cell Ultrastructure</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17089/prokaryote-cell-structure-function.html" title="Prokaryote cell structure & function">Prokaryote cell structure & function</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../31695/yoghurt-and-milk-bacteria-experiment.html" title="Yoghurt and milk bacteria experiment">Yoghurt and milk bacteria experiment</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../40689/inquiry-into-milk-turning-to-yoghurt.html" title="Inquiry into milk turning to yoghurt.">Inquiry into milk turning to yoghurt.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17092/mobile-phone-bacteria-experiment.html" title="Mobile phone bacteria experiment">Mobile phone bacteria experiment</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17091/cell-types-detective-activity.html" title="Cell Types Detective Activity">Cell Types Detective Activity</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17339/membrane-structure.html" title="Membrane Structure">Membrane Structure</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17374/falsification-of-membrane-structures.html" title="Falsification of membrane structures">Falsification of membrane structures</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17340/further-membrane-structure.html" title="Further Membrane Structure">Further Membrane Structure</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19738/membrane-transport-models.html" title="Membrane transport models">Membrane transport models</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17352/membrane-permeablility-experiment.html" title="Membrane Permeablility Experiment">Membrane Permeablility Experiment</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17351/onion-cell-plasmolysis-experiment.html" title="Onion cell plasmolysis experiment">Onion cell plasmolysis experiment</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17319/endosymbiosis-nature-of-science.html" title="Endosymbiosis - Nature of Science">Endosymbiosis - Nature of Science</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17354/mitosis-and-the-cell-cycle.html" title="Mitosis and the Cell Cycle">Mitosis and the Cell Cycle</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17391/mitotic-index-cancer.html" title="Mitotic index & cancer">Mitotic index & cancer</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../18364/mitotic-index-model-answers.html" title="Mitotic index - model answers">Mitotic index - model answers</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17393/control-of-cell-cycle-cancer.html" title="Control of cell cycle & cancer">Control of cell cycle & cancer</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../16979/molecular-biology-activities-for-learning.html" title="Molecular biology: Activities for Learning">Molecular biology: Activities for Learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17507/carbon-based-compounds.html" title="Carbon based compounds.">Carbon based compounds.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17508/drawing-biological-molecules.html" title="Drawing biological molecules">Drawing biological molecules</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17466/visualising-molecules.html" title="Visualising molecules">Visualising molecules</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17506/properties-of-water.html" title="Properties of Water">Properties of Water</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17550/condensation-hydrolysis.html" title="Condensation & Hydrolysis.">Condensation & Hydrolysis.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17551/sugar-analysis-experiment.html" title="Sugar Analysis Experiment">Sugar Analysis Experiment</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17549/calorimetry-experiment.html" title="Calorimetry experiment">Calorimetry experiment</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17677/dietary-fats-and-bmi.html" title="Dietary fats and BMI">Dietary fats and BMI</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17553/peptide-bond-structure.html" title="Peptide bond structure.">Peptide bond structure.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../36397/polypeptide-structure.html" title="Polypeptide structure">Polypeptide structure</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17692/protein-structure.html" title="Protein Structure.">Protein Structure.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17695/enzyme-theory.html" title="Enzyme Theory">Enzyme Theory</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17696/yeast-and-catalase-experiment.html" title="Yeast and Catalase Experiment">Yeast and Catalase Experiment</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17697/lactose-intolerance.html" title="Lactose Intolerance">Lactose Intolerance</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17552/dna-structure.html" title="DNA Structure">DNA Structure</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17706/extracting-dna-experiment.html" title="Extracting DNA Experiment.">Extracting DNA Experiment.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17704/dna-replication.html" title="DNA Replication">DNA Replication</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17705/transcription-of-mrna-from-dna.html" title="Transcription of mRNA from DNA">Transcription of mRNA from DNA</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17707/translation-of-mrna-into-amino-acids.html" title="Translation of mRNA into Amino Acids">Translation of mRNA into Amino Acids</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19635/cell-respiration.html" title="Cell Respiration.">Cell Respiration.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19636/respiration-experiments.html" title="Respiration experiments.">Respiration experiments.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../15713/photosynthesis-theory.html" title="Photosynthesis Theory">Photosynthesis Theory</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20556/photosynthetic-pigments-.html" title="Photosynthetic pigments ">Photosynthetic pigments </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../15727/photosynthesis-experiments.html" title="Photosynthesis Experiments">Photosynthesis Experiments</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../16980/genetics-activities-for-learning.html" title="Genetics Activities for Learning">Genetics Activities for Learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17813/chromosomes-genes-alleles.html" title="Chromosomes genes & alleles">Chromosomes genes & alleles</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17822/human-genome-project.html" title="Human Genome Project">Human Genome Project</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17827/base-substitution-mutation.html" title="Base substitution mutation">Base substitution mutation</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17859/chromosomes.html" title="Chromosomes">Chromosomes</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17816/karyograms-and-non-disjunction.html" title="Karyograms and non-disjunction">Karyograms and non-disjunction</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17814/introduction-to-meiosis.html" title="Introduction to Meiosis">Introduction to Meiosis</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17817/theoretical-genetics-1.html" title="Theoretical Genetics 1">Theoretical Genetics 1</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../23787/stargardt-disease.html" title="Stargardt disease">Stargardt disease</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17818/theoretical-genetics-2.html" title="Theoretical Genetics 2">Theoretical Genetics 2</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17819/sex-linked-genes.html" title="Sex Linked Genes">Sex Linked Genes</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../17825/is-genetics-an-embarrassment-to-biology-education-.html" title="Is genetics an embarrassment to biology education? ">Is genetics an embarrassment to biology education? </a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17809/hairy-hands-genetics-of-mid-digital-hair.html" title="Hairy Hands - genetics of mid-digital hair">Hairy Hands - genetics of mid-digital hair</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17810/pedigree-chart-phenotype-ratios.html" title="Pedigree Chart & Phenotype Ratios">Pedigree Chart & Phenotype Ratios</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17820/ia-maize-genetics-experiment.html" title="IA Maize Genetics Experiment">IA Maize Genetics Experiment</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17823/genetically-modified-organisms.html" title="Genetically Modified Organisms.">Genetically Modified Organisms.</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17824/introduction-to-cloning.html" title="Introduction to Cloning.">Introduction to Cloning.</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../33736/cloning-ethics-quiz.html" title="Cloning ethics - quiz">Cloning ethics - quiz</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17811/therapeutic-cloning-debate-.html" title="Therapeutic Cloning Debate ">Therapeutic Cloning Debate </a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../16981/ecology-activities-for-learning.html" title="Ecology Activities for Learning">Ecology Activities for Learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17905/ecological-terms.html" title="Ecological terms.">Ecological terms.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17906/food-webs.html" title="Food Webs">Food Webs</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17927/mesocosm-lab.html" title="Mesocosm Lab">Mesocosm Lab</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../23435/ecology-mini-investigation.html" title="Ecology mini investigation">Ecology mini investigation</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../33629/ecology-field-trip-at-home.html" title="Ecology field trip - at home">Ecology field trip - at home</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17907/energy-flow.html" title="Energy Flow.">Energy Flow.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17912/carbon-cycle-skills.html" title="Carbon Cycle Skills">Carbon Cycle Skills</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17908/enhanced-greenhouse-effect.html" title="Enhanced Greenhouse Effect.">Enhanced Greenhouse Effect.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17909/climate-change.html" title="Climate Change.">Climate Change.</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../16985/evolution-activities-for-learning.html" title="Evolution: Activities for Learning">Evolution: Activities for Learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../15988/evolution-introduction.html" title="Evolution introduction">Evolution introduction</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../15990/variation-overproduction.html" title="Variation & overproduction">Variation & overproduction</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../15989/evolution-examples.html" title="Evolution examples">Evolution examples</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19320/classification-binomial-names.html" title="Classification & binomial names">Classification & binomial names</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../15991/classification-of-plants.html" title="Classification of Plants">Classification of Plants</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../19306/plant-classification-quiz.html" title="Plant classification quiz">Plant classification quiz</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../15993/classification-of-animals.html" title="Classification of Animals">Classification of Animals</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../23751/classification-games.html" title="Classification games">Classification games</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18912/intro-to-cladistics.html" title="Intro to cladistics">Intro to cladistics</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18910/reclassification-of-figworts-using-cladistics.html" title="Reclassification of figworts using cladistics">Reclassification of figworts using cladistics</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../18027/humans-activities-for-learning.html" title="Humans Activities for Learning">Humans Activities for Learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18028/digestion-enzymes-intro-.html" title="Digestion & Enzymes Intro ">Digestion & Enzymes Intro </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18029/ia-lipase-experiment.html" title="IA Lipase Experiment">IA Lipase Experiment</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18033/structure-of-the-digestive-system.html" title="Structure of the digestive system.">Structure of the digestive system.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18030/intestine-structure-function.html" title="Intestine Structure & Function.">Intestine Structure & Function.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18031/blood-and-blood-vessels.html" title="Blood and Blood Vessels">Blood and Blood Vessels</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18032/heart-dissection-diagram.html" title="Heart Dissection & Diagram">Heart Dissection & Diagram</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18026/controlling-heartbeat.html" title="Controlling Heartbeat">Controlling Heartbeat</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18590/blood-clotting-and-heart-disease.html" title="Blood clotting and heart disease.">Blood clotting and heart disease.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18117/antigens-and-antibodies-.html" title="Antigens and antibodies ">Antigens and antibodies </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18180/hiv-and-aids.html" title="HIV and AIDS">HIV and AIDS</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18116/immune-system-.html" title="Immune System ">Immune System </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18115/alveoli-gas-exchange.html" title="Alveoli & gas exchange">Alveoli & gas exchange</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19330/ventilation-lung-disease.html" title="Ventilation & lung disease">Ventilation & lung disease</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18421/nerve-impulses.html" title="Nerve impulses.">Nerve impulses.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18461/synapses.html" title="Synapses">Synapses</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../31311/chemicals-which-affect-synapses.html" title="Chemicals which affect synapses">Chemicals which affect synapses</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19886/hormones-introduction.html" title="Hormones introduction">Hormones introduction</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19894/homeostasis-of-glucose.html" title="Homeostasis of Glucose.">Homeostasis of Glucose.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19907/harvey-and-the-search-for-ova.html" title="Harvey and the search for ova">Harvey and the search for ova</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19908/hormones-and-the-menstrual-cycle.html" title="Hormones and the menstrual cycle">Hormones and the menstrual cycle</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19927/hormones-in-ivf.html" title="Hormones in IVF">Hormones in IVF</a></li></ul></ul><li class="ancestor parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right fa-rotate-90"></i><a class="" href="../17178/additional-hl.html" title="Additional HL">Additional HL</a></li><ul class="level-1 expanded"><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17917/hl-nucleic-acids-activities-for-learning.html" title="HL Nucleic Acids Activities for Learning">HL Nucleic Acids Activities for Learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17918/dna-structure-extras-for-hl.html" title="DNA structure - Extras for HL">DNA structure - Extras for HL</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../16141/dna-replication-for-hl-students.html" title="DNA Replication for HL Students">DNA Replication for HL Students</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17920/transcription-extras-for-hl.html" title="Transcription - extras for HL">Transcription - extras for HL</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../37259/extension-concept-hydrolysis-of-atp.html" title="Extension concept - Hydrolysis of ATP">Extension concept - Hydrolysis of ATP</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18048/translation-ribosomes.html" title="Translation & ribosomes">Translation & ribosomes</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17921/four-levels-of-protein-structure.html" title="Four levels of protein structure">Four levels of protein structure</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../18211/hl-metabolism-activities-for-learning.html" title="HL Metabolism Activities for Learning">HL Metabolism Activities for Learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19840/activation-energy-and-enzyme-pathways.html" title="Activation energy and enzyme pathways">Activation energy and enzyme pathways</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19850/emergency-room-activity-enzyme-inhibition.html" title="Emergency room activity - enzyme inhibition">Emergency room activity - enzyme inhibition</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../19865/toxicology-training-course.html" title="Toxicology training course">Toxicology training course</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17923/end-product-inhibition-of-enzymes.html" title="End product inhibition of Enzymes.">End product inhibition of Enzymes.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17922/hl-respiration-introduction.html" title="HL Respiration introduction">HL Respiration introduction</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../16207/glycolysis-and-the-krebs-cycle.html" title="Glycolysis and the Krebs Cycle">Glycolysis and the Krebs Cycle</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18214/electron-transport-chain.html" title="Electron transport chain">Electron transport chain</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../16209/chloroplasts-and-photosynthesis.html" title="Chloroplasts and Photosynthesis">Chloroplasts and Photosynthesis</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../16210/light-dependent-reactions.html" title="Light Dependent Reactions">Light Dependent Reactions</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../16211/light-independent-reactions.html" title="Light Independent Reactions">Light Independent Reactions</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17720/hl-plant-biology-activities-for-learning.html" title="HL Plant Biology - Activities for Learning">HL Plant Biology - Activities for Learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17726/leaf-stomata-transpiration.html" title="Leaf stomata & transpiration">Leaf stomata & transpiration</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17721/vascular-tissues-introduction.html" title="Vascular tissues - introduction">Vascular tissues - introduction</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17723/transport-in-xylem.html" title="Transport in xylem">Transport in xylem</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17727/experiments-on-transpiration.html" title="Experiments on Transpiration.">Experiments on Transpiration.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17724/transpiration-and-xerophytes-.html" title="Transpiration and Xerophytes ">Transpiration and Xerophytes </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17763/phloem-and-translocation.html" title="Phloem and translocation">Phloem and translocation</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17722/meristems-and-growth.html" title="Meristems and Growth.">Meristems and Growth.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17804/hormonal-control-in-plants.html" title="Hormonal control in plants">Hormonal control in plants</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17725/reproduction-in-angiosperms.html" title="Reproduction in angiosperms.">Reproduction in angiosperms.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17808/seeds-flowering-phytochromes.html" title="Seeds, flowering & phytochromes">Seeds, flowering & phytochromes</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17888/hl-genetics-activities-for-learning.html" title="HL Genetics Activities for Learning">HL Genetics Activities for Learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17889/meiosis.html" title="Meiosis.">Meiosis.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17890/di-hybrid-crosses.html" title="Di-Hybrid Crosses.">Di-Hybrid Crosses.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17892/polygenic-inheritance.html" title="Polygenic Inheritance.">Polygenic Inheritance.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17891/gene-linkage-1.html" title="Gene Linkage 1">Gene Linkage 1</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17894/gene-linkage-2.html" title="Gene Linkage 2">Gene Linkage 2</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17901/gene-pools.html" title="Gene pools">Gene pools</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19670/polyploidy.html" title="Polyploidy">Polyploidy</a></li></ul><li class="ancestor parent" style="padding-left: 14px"><i class="expander fa fa-caret-right fa-rotate-90"></i><a class="" href="../19559/hl-animal-physiology-activities-for-learning.html" title="HL Animal Physiology Activities for Learning">HL Animal Physiology Activities for Learning</a></li><ul class="level-2 expanded"><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19560/antibody-production.html" title="Antibody production">Antibody production</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19566/monoclonal-antibodies.html" title="Monoclonal antibodies">Monoclonal antibodies</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19565/vaccination.html" title="Vaccination">Vaccination</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19561/muscles-joints.html" title="Muscles & joints">Muscles & joints</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19564/muscle-structure-function.html" title="Muscle structure & function.">Muscle structure & function.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19681/osmoregulation.html" title="Osmoregulation">Osmoregulation</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19562/kidney-and-nephrons.html" title="Kidney and nephrons.">Kidney and nephrons.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18813/gamete-formation.html" title="Gamete formation">Gamete formation</a></li><li class="current" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="fertilization-blastocyst.html" title="Fertilization & blastocyst">Fertilization & blastocyst</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20080/pregnancy-and-birth.html" title="Pregnancy and birth">Pregnancy and birth</a></li></ul></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="../17193/options-.html" title="Options ">Options </a></li><ul class="level-1 "><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../21490/option-a-neurobiology-activities-for-learning.html" title="Option A - Neurobiology - Activities for learning">Option A - Neurobiology - Activities for learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21399/nervous-system-formation.html" title="Nervous system formation">Nervous system formation</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21401/synapses-and-nervous-system-plasticity.html" title="Synapses and nervous system plasticity">Synapses and nervous system plasticity</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21519/brain-structure-and-function.html" title="Brain structure and function">Brain structure and function</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21520/the-cerebral-cortex.html" title="The Cerebral cortex">The Cerebral cortex</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21525/sensory-receptors-and-smell.html" title="Sensory receptors and smell">Sensory receptors and smell</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21526/the-eye-and-photoreceptors.html" title="The eye and photoreceptors">The eye and photoreceptors</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../33371/reflexes.html" title="Reflexes">Reflexes</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../33372/conditioning-and-imprinting.html" title="Conditioning and imprinting">Conditioning and imprinting</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../25280/option-b-biotechnology-and-bioinformatics.html" title="Option B - Biotechnology and bioinformatics">Option B - Biotechnology and bioinformatics</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../32571/batch-fermentation-and-continuous-culture.html" title="Batch fermentation and continuous culture">Batch fermentation and continuous culture</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../25411/cryptic-messages-bioinformatics-introduction.html" title="Cryptic messages - bioinformatics introduction">Cryptic messages - bioinformatics introduction</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../25364/orf-activity.html" title="ORF activity">ORF activity</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../22063/option-c-ecology-activities-for-learning.html" title="Option C - Ecology Activities for learning">Option C - Ecology Activities for learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22081/describing-communities.html" title="Describing communities">Describing communities</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22083/limits-and-zones-lab.html" title="Limits and zones lab">Limits and zones lab</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22084/symbiosis-v-competitive-exclusion.html" title="Symbiosis v Competitive exclusion">Symbiosis v Competitive exclusion</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22085/modelling-energy-flow.html" title="Modelling energy flow">Modelling energy flow</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22086/predicting-ecosystems.html" title="Predicting ecosystems">Predicting ecosystems</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22089/modelling-nutrients.html" title="Modelling nutrients">Modelling nutrients</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22088/disturbance-vs-diversity.html" title="Disturbance vs Diversity">Disturbance vs Diversity</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22807/invasive-species.html" title="Invasive species">Invasive species</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22810/biomagnification.html" title="Biomagnification">Biomagnification</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22958/plastic-debris.html" title="Plastic debris">Plastic debris</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../23153/indicator-species-biotic-index.html" title="Indicator species & biotic index">Indicator species & biotic index</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../23154/conservation-methods.html" title="Conservation methods">Conservation methods</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22059/biodiversity-estimations.html" title="Biodiversity estimations">Biodiversity estimations</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../22060/lincoln-index-activities.html" title="Lincoln Index activities">Lincoln Index activities</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../27387/population-growth-curves.html" title="Population growth curves">Population growth curves</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../27433/fisheries-and-populations.html" title="Fisheries and populations">Fisheries and populations</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18998/nitrogen-cycle-applications.html" title="Nitrogen cycle - applications">Nitrogen cycle - applications</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../28235/phosphorus-cycle.html" title="Phosphorus cycle">Phosphorus cycle</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../20088/option-d-human-physiology-activities-for-learning.html" title="Option D - Human physiology Activities for learning">Option D - Human physiology Activities for learning</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20215/is-it-so-bad-to-eat-only-pizza.html" title="Is it so bad to eat only pizza?">Is it so bad to eat only pizza?</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20220/appetite-and-malnutrition.html" title="Appetite and malnutrition">Appetite and malnutrition</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20284/exocrine-glands.html" title="Exocrine glands">Exocrine glands</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20300/control-of-digestive-secretions.html" title="Control of digestive secretions">Control of digestive secretions</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20259/a-miracle-cure-for-ulcers.html" title="A miracle cure for ulcers">A miracle cure for ulcers</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20664/liver-structure-function.html" title="Liver structure & function.">Liver structure & function.</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20665/jaundice-liver-function.html" title="Jaundice & liver function">Jaundice & liver function</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20692/cardiac-muscle-myogenic-control.html" title="Cardiac muscle & myogenic control">Cardiac muscle & myogenic control</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20707/cardiology-role-play.html" title="Cardiology Role play">Cardiology Role play</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../24113/epidemiology-framingham-heart-study.html" title="Epidemiology - Framingham heart study">Epidemiology - Framingham heart study</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20706/pituitary-gland-and-hormones.html" title="Pituitary gland and hormones">Pituitary gland and hormones</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20732/oxygen-dissociation-curves.html" title="Oxygen dissociation curves">Oxygen dissociation curves</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20708/carbon-dioxide-and-bohr-shift.html" title="Carbon dioxide and Bohr shift">Carbon dioxide and Bohr shift</a></li></ul></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="../17622/the-investigation.html" title="The Investigation">The Investigation</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../21187/individual-investigation-skills-introduction.html" title="Individual investigation - skills introduction">Individual investigation - skills introduction</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17179/practical-scheme-of-work.html" title="Practical Scheme of Work">Practical Scheme of Work</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../16860/lab-protocols-for-the-biology-ib-guide.html" title="Lab protocols for the Biology IB guide">Lab protocols for the Biology IB guide</a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17623/planning-for-skills-progression.html" title="Planning for skills progression">Planning for skills progression</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17624/personal-engagement.html" title="Personal Engagement">Personal Engagement</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19063/personal-engagement-personality-quiz.html" title="Personal Engagement - personality quiz">Personal Engagement - personality quiz</a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../34461/three-ways-to-choose-a-topic-for-the-ia.html" title="Three ways to choose a topic for the IA">Three ways to choose a topic for the IA</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17625/exploration.html" title="Exploration">Exploration</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../23429/focusing-a-research-question.html" title="Focusing a research question">Focusing a research question</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17626/analysis.html" title="Analysis">Analysis</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../26255/ia-analysis-anova-or-t-test.html" title="IA Analysis - ANOVA or t-test?">IA Analysis - ANOVA or t-test?</a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17627/evaluation.html" title="Evaluation">Evaluation</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17628/communication.html" title="Communication">Communication</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../38973/ia-ideas-during-a-pandemic-2020-21.html" title="IA ideas during a pandemic 2020-21">IA ideas during a pandemic 2020-21</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../30218/ia-avoiding-common-errors.html" title="IA - Avoiding common errors">IA - Avoiding common errors</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../34356/ia-experiments-that-could-be-done-at-home.html" title="IA Experiments that could be done at home">IA Experiments that could be done at home</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../34574/ia-experiment-ideas-inspired-by-youtube.html" title="IA experiment ideas inspired by Youtube">IA experiment ideas inspired by Youtube</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../15992/6-ecological-ideas-for-your-ia.html" title="6 Ecological ideas for your IA">6 Ecological ideas for your IA</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../20852/30-investigation-ideas-for-biology-ia.html" title="30 investigation ideas for Biology IA">30 investigation ideas for Biology IA</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../39689/investigating-strawberries-with-a-glucose-test-meter.html" title="Investigating strawberries with a glucose test meter">Investigating strawberries with a glucose test meter</a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../23240/16-new-experiment-ideas-for-biology-ia.html" title="16 new experiment ideas for Biology IA">16 new experiment ideas for Biology IA</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../26171/12-investigation-ideas-with-a-biological-twist.html" title="12 Investigation ideas with a biological twist.">12 Investigation ideas with a biological twist.</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../26186/body-temperature-data.html" title="Body temperature data">Body temperature data</a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../19329/ia-investigation-marking-sheet.html" title="IA Investigation - marking sheet">IA Investigation - marking sheet</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../21859/marking-rigour-ia-assessment-criteria.html" title="Marking rigour & IA assessment criteria.">Marking rigour & IA assessment criteria.</a></li></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="../18404/quizzes-tests-revision.html" title="Quizzes tests & revision">Quizzes tests & revision</a></li><ul class="level-1 "><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17665/the-exams.html" title="The Exams">The Exams</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19051/describing-trends-in-ib-graphs.html" title="Describing trends in IB graphs">Describing trends in IB graphs</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20791/paper-3-section-a-questions.html" title="Paper 3 Section A - questions">Paper 3 Section A - questions</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../26073/graphical-analysis-skills-for-life.html" title="Graphical analysis - skills for life!">Graphical analysis - skills for life!</a></li></ul></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../18403/a3-topic-revision-sheets.html" title="A3 topic revision sheets">A3 topic revision sheets</a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18405/topic-1-cells-revision-activities.html" title="Topic 1 - Cells revision activities">Topic 1 - Cells revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../22372/topic-1-cells-sl-revision-list.html" title="Topic 1 - Cells SL revision list">Topic 1 - Cells SL revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19003/topic-2-molecular-biology-revision-activities.html" title="Topic 2 - Molecular biology revision activities">Topic 2 - Molecular biology revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../22373/topic-2-bio-molecules-sl-revision-list.html" title="Topic 2 - Bio molecules SL revision list">Topic 2 - Bio molecules SL revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18999/topic-3-genetics-sl-revision-activities.html" title="Topic 3 - Genetics SL revision activities">Topic 3 - Genetics SL revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../22378/topic-3-genetics-sl-revision-list.html" title="Topic 3 - Genetics SL revision list">Topic 3 - Genetics SL revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19480/topic-4-ecology-sl-revision-activities.html" title="Topic 4 - Ecology SL revision activities">Topic 4 - Ecology SL revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../22395/topic-4-ecology-revision-list.html" title="Topic 4 - Ecology revision list">Topic 4 - Ecology revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19006/topic-5-evolution-sl-revision-activities.html" title="Topic 5 - Evolution SL revision activities">Topic 5 - Evolution SL revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../22474/topic-5-evolution-revision-list.html" title="Topic 5 - Evolution revision list">Topic 5 - Evolution revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20121/topic-6-human-physiology-sl-revision-activities.html" title="Topic 6 - human physiology SL revision activities">Topic 6 - human physiology SL revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../22396/topic-6-human-physiology-revision-list.html" title="Topic 6 - Human physiology revision list">Topic 6 - Human physiology revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20196/topic-7-nucleic-acids-hl-revision-activities.html" title="Topic 7 - Nucleic acids HL revision activities">Topic 7 - Nucleic acids HL revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../20139/topic-7-nucleic-acids-hl-revision-list.html" title="Topic 7 - Nucleic acids HL revision list">Topic 7 - Nucleic acids HL revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20787/topic-8-metabolism-hl-revision-activities.html" title="Topic 8 - Metabolism HL revision activities">Topic 8 - Metabolism HL revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../20198/topic-8-metabolism-hl-revision-list.html" title="Topic 8 - Metabolism HL revision list">Topic 8 - Metabolism HL revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20122/topic-9-plant-biology-hl-revision-activities.html" title="Topic 9 - Plant biology HL revision activities">Topic 9 - Plant biology HL revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../20773/topic-9-plants-hl-revision-list.html" title="Topic 9 - Plants HL - revision list">Topic 9 - Plants HL - revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../20849/topic-10-genetics-hl-revision-activities.html" title="Topic 10 - Genetics HL Revision activities">Topic 10 - Genetics HL Revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../20128/topic-10-genetics-hl-revision-list.html" title="Topic 10 - Genetics HL revision list">Topic 10 - Genetics HL revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="std-disabled" href="#" title="Topic 11 - Physiology HL Revision activities">Topic 11 - Physiology HL Revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../20115/topic-11-animal-physiology-revision-list.html" title="Topic 11 - Animal physiology revision list">Topic 11 - Animal physiology revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../23821/option-a-neurobiology-revision-activities.html" title="Option A - Neurobiology - Revision activities">Option A - Neurobiology - Revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../23822/option-a-neurobiology-sl-revision-list.html" title="Option A - Neurobiology SL Revision list">Option A - Neurobiology SL Revision list</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../23831/option-a-neurobiology-hl-revision-list.html" title="Option A - Neurobiology HL Revision list">Option A - Neurobiology HL Revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19001/option-c-ecology-revision-activities.html" title="Option C - Ecology revision activities">Option C - Ecology revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../27865/option-c-ecology-sl-revision-list-.html" title="Option C - Ecology SL revision list ">Option C - Ecology SL revision list </a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../27863/option-c-ecology-hl-revision-list.html" title="Option C - Ecology HL revision list">Option C - Ecology HL revision list</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../26107/option-d-human-physiology-revision-activities.html" title="Option D - Human Physiology Revision activities">Option D - Human Physiology Revision activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../26108/option-d-human-physiology-hl-revision-list.html" title="Option D - Human physiology HL revision list">Option D - Human physiology HL revision list</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../27855/option-d-human-physiology-sl-revision-list.html" title="Option D - Human physiology SL Revision list">Option D - Human physiology SL Revision list</a></li></ul></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17996/multiple-choice-quizzes.html" title="Multiple Choice Quizzes">Multiple Choice Quizzes</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../17664/key-biological-terms-by-topic.html" title="Key biological terms - by topic">Key biological terms - by topic</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17670/key-terms-cells-topic.html" title="Key terms - Cells topic">Key terms - Cells topic</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17671/key-terms-molecular-biology-topic.html" title="Key terms - Molecular biology topic">Key terms - Molecular biology topic</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../18209/key-terms-genetics-sl-topic.html" title="Key terms - Genetics SL topic">Key terms - Genetics SL topic</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../31103/key-terms-ecology-topic.html" title="Key Terms - Ecology Topic">Key Terms - Ecology Topic</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../31106/key-terms-evolution-topic.html" title="Key terms - Evolution topic">Key terms - Evolution topic</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../23523/key-terms-human-physiology-topic.html" title="Key terms - Human physiology topic">Key terms - Human physiology topic</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../35861/key-terms-metabolism-hl-topic.html" title="Key terms - Metabolism HL topic">Key terms - Metabolism HL topic</a></li></ul></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="../7428/ib-core.html" title="IB Core">IB Core</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../7549/ib-learner-profile.html" title="IB learner profile">IB learner profile</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../15970/tok-introductions.html" title="TOK - Introductions">TOK - Introductions</a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../166/tok-learning-activities.html" title="TOK Learning activities">TOK Learning activities</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../22195/tok-models-expert-disagreement.html" title="TOK - Models & expert disagreement">TOK - Models & expert disagreement</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../13582/tok-certainty-and-paradigm-shifts.html" title="TOK Certainty and Paradigm shifts">TOK Certainty and Paradigm shifts</a></li><li class=" parent" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../14886/tok-postcards.html" title="TOK postcards">TOK postcards</a></li><ul class="level-4 "><li class="" style="padding-left: 56px"><i class="expander fa fa-caret-right "></i><a class="" href="../14884/correlation-cause-tok-postcard.html" title="Correlation & Cause TOK Postcard">Correlation & Cause TOK Postcard</a></li><li class="" style="padding-left: 56px"><i class="expander fa fa-caret-right "></i><a class="" href="../14959/paradigm-shift-in-cell-theory-tok-postcard.html" title="Paradigm Shift in Cell theory TOK postcard">Paradigm Shift in Cell theory TOK postcard</a></li><li class="" style="padding-left: 56px"><i class="expander fa fa-caret-right "></i><a class="" href="../14969/perception-technology-tok-postcard.html" title="Perception & technology TOK postcard">Perception & technology TOK postcard</a></li></ul><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../13583/tok-reasoning-by-induction-extension.html" title="TOK Reasoning by induction (extension)">TOK Reasoning by induction (extension)</a></li><li class=" parent" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../13593/tok-when-is-science-no-use.html" title="TOK When is Science no use?">TOK When is Science no use?</a></li><ul class="level-4 "><li class="" style="padding-left: 56px"><i class="expander fa fa-caret-right "></i><a class="" href="../7676/brain-death.html" title="Brain Death">Brain Death</a></li></ul></ul></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../160/extended-essays-overview.html" title="Extended Essays - overview">Extended Essays - overview</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../17404/introduction-to-the-extended-essay.html" title="Introduction to the extended essay">Introduction to the extended essay</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../1934/extended-essay-titles-and-research-questions.html" title="Extended Essay titles and research questions">Extended Essay titles and research questions</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../19261/extended-essay-self-review-quiz-for-students.html" title="Extended essay - self review quiz for students">Extended essay - self review quiz for students</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../9875/ee-supervisor-roles-during-the-writing-process.html" title="EE supervisor roles - during the writing process">EE supervisor roles - during the writing process</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../37911/ee-supervisor-roles-feedback-on-a-draft.html" title="EE supervisor roles - feedback on a draft">EE supervisor roles - feedback on a draft</a></li></ul></ul></ul></nav> </div> </div> </div> </div><div style="margin-top: 20px;"><style type="text/css">
.studyib-link {
display: inline-block;
overflow: hidden;
font-size: 1.2em;
font-weight: normal;
margin: 10px;
transition: transform .2s; /* Animation */
}
#left-column .studyib-link {
font-size: 1em;
font-weight: normal;
margin: 5px;
transition: transform .2s; /* Animation */
}
#left-column .studyib-advert h2 {
font-size: 1.35em;
}
.studyib-link:hover {
transform: scale(1.2);
}
.studyib-link > img {
width: 2em; height: 2em;
margin: 0;
float: left;
}
.embed-responsive {
position: relative;
display: block;
height: 0;
padding: 0;
margin: 15px 0;
}
.embed-responsive-16by9 {
padding-bottom: 56.25%;
}
.embed-responsive iframe {
position: absolute;
top: 0;
left: 0;
bottom: 0;
height: 100%;
width: 100%;
border: 0;
}
.studyib-advert {
padding: 20px;
background: #E7EDF5;
border: solid 1px #EFF;
/* margin-left: 70px; */
}
.studyib-advert .heading {
display: flex;
flex-direction: row;
align-items: center;
}
.studyib-advert .heading img {
margin-right: 15px;
}
.studyib-advert .heading span {
color: #444
}
.studyib-advert h2,
.studyib-advert h3 {
margin: 0;
}
.studyib-advert .body {
margin-top: 20px;
}
</style>
<div class="studyib-advert">
<div class="heading">
<img src="../../../img/header-thinker-sib.svg" height="50" width="50" class="pull-left" alt="InThinking Revision Sites">
<div>
<h2>INTHINKING REVISION SITES</h2>
<span><em>Own your learning</em></span>
</div>
</div>
<div class="body">
<p>Why not also try our independent learning self-study & revision websites for students?</p>
<p>We currenly offer the following DP Sites: Biology, Chemistry, English A Lang & Lit, Maths A&A, Maths A&I, Physics, Spanish B</p>
<p>
<em>"The site is great for revising the basic understandings of each topic quickly.
Especially since you are able to test yourself at the end of each page and easily see where yo need to improve."</em>
</p>
<p><em>"It is life saving... I am passing IB because of this site!"</em></p>
<p>Basic (limited access) subscriptions are FREE. Check them out at:</p>
<div class="text-center">
<h3>
<a href="//studyib.net">www.StudyIB.net</a>
</h3>
</div>
</div>
</div>
</div></div><!-- /#left-column-->
<div id="main-column" class="span9"> <article id="fertilization-blastocyst" style="margin-top: 16px;">
<h1 class="section-title">Fertilization & blastocyst</h1>
<ul class="breadcrumb"><li><a title="Home" href="../../../biology.html"><i class="fa fa-home"></i></a><span class="divider">/</span></li><li><span class="gray">Additional HL</span><span class="divider">/</span></li><li><span class="gray">HL Animal Physiology Activities for Learning</span><span class="divider">/</span></li><li><span class="active">Fertilization & blastocyst</span></li></ul>
<div class="row-fluid">
<section class="span12" id="main-content">
<p><img alt="" class="left" src="../../../ib/biology/images/flickr_cc_commercial_ok/hl_topics/11humans/fertilization.jpg" style="width: 104px; height: 98px; float: left;" title=" Image CC on Flickr by euthman">Students watch short videos illustrating internal and external fertilization before studying the processes which take place during fertilization. There is an activity to sort the steps into the right order followed by some flashcards. A final stepping stones activity also includes the early development of the embryo into a blastocyst is followed by implantation and the growth of the placenta.</p><hr class="hidden"><div class="greyBg"><h3>Lesson Description</h3><div class="blueBg"><h3>Guiding Questions</h3><ul><li>How can it be that from millions of sperm cells only one fertilizes the egg?</li><li>How does a newly implanted blastocyst prevent the monthly period of the menstrual cycle?</li></ul></div><p style="text-align: center; "></p><h3>Activity 1 - Processes of fertilization</h3><p>Watch the explanations of reproduction in crabs and sea urchins as examples of external reproduction in this short video from David Attenborough. It is worth watching about five minute up to the herring spawning.</p><div><object height="341" id="veohFlashPlayer" name="veohFlashPlayer" width="410"><param name="movie" value="http://www.veoh.com/swf/webplayer/WebPlayer.swf?version=AFrontend.5.7.0.1509&permalinkId=v3156097r4mAy94&player=videodetailsembedded&videoAutoPlay=0&id=anonymous"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"></object><div><object height="341" id="veohFlashPlayer" name="veohFlashPlayer" width="410"><param name="movie" value="http://www.veoh.com/swf/webplayer/WebPlayer.swf?version=AFrontend.5.7.0.1509&permalinkId=v3156097r4mAy94&player=videodetailsembedded&videoAutoPlay=0&id=anonymous"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed allowfullscreen="true" allowscriptaccess="always" height="341" id="veohFlashPlayerEmbed" name="veohFlashPlayerEmbed" src="http://www.veoh.com/swf/webplayer/WebPlayer.swf?version=AFrontend.5.7.0.1509&permalinkId=v3156097r4mAy94&player=videodetailsembedded&videoAutoPlay=0&id=anonymous" type="application/x-shockwave-flash" width="410"></object><br>Watch <a href="http://www.veoh.com/watch/v3156097r4mAy94/trialsoflife">Trials of Life ep1</a> in <a href="http://www.veoh.com/browse/videos/category/educational">Educational</a> | View More <a href="http://www.veoh.com">Free Videos Online at Veoh.com</a></div><div><iframe frameborder="0" height="360" scrolling="no" src="https://www.veoh.com/watch/v3156097r4mAy94" width="720"></iframe></div></div><p>And internal fertilization with this short film of hedgehogs</p><p><iframe allowfullscreen="" frameborder="0" height="360" src="//www.youtube.com/embed/btY-3ED__Vo" width="640"></iframe></p><p>And gorillas also use internal fertilization. They are of course also mammals like hedgehogs.</p><p><iframe allowfullscreen="" frameborder="0" height="360" src="//www.youtube.com/embed/iDaHPi8HOGA?rel=0" width="640"></iframe></p><p>Answer the following questions about internal and external fertilization.</p><div class="blueBg"><h3>Questions</h3><ol><li>How many egg cells are produced by the crabs, compared to the hedgehog and gorilla? <br>....................</li><li>Give two advantages for animals using external fertilization in the sea.<br>..............................................................<br>..............................................................</li><li>State a disadvantage of external fertilization<br>.....................................................................................................................................................</li><li>Describe an advantage of internal fertilization has over external fertilization.<br>.....................................................................................................................................................</li><li>Mammals and reptiles use internal fertilization, name two groups of animals which use external fertilization.<br>.....................................................................................................................................................</li></ol></div><p>Click the eye icon to display model answers.</p><section class="tib-hiddenbox"><div class="yellowBg"><h3>Some model answers</h3><ol><li>How many egg cells are produced by the crabs, compared to the hedgehog and gorilla? <br><span style="color:#FF0000;">..Crabs produce many millions of eggs whereas a hedgehog will only produce a few.</span></li><li>Give two advantages for animals using external fertilization in the sea.<br>...<span style="color:#FF0000;">Many more eggs can be produced...<br>...The sea can scatter the eggs over large distances (hundreds of miles)</span>....</li><li>State a disadvantage of external fertilization<br>....<span style="color:#FF0000;">Many of the eggs get eaten</span> ..........</li><li>Describe an advantage of internal fertilization has over external fertilization.<br>.....<span style="color:#FF0000;">The eggs are much less exposed to predators, and there is a much higher chance of fertilization and successful development of the fertilized egg</span>...............</li><li>Mammals and reptiles use internal fertilization, name two groups of animals which use external fertilization.<br>... <span style="color:#FF0000;">Fish, Sea urchins, Crabs, Clams</span>....</li></ol></div></section><hr class="hidden"><h3>Activity 2: The process of fertilization</h3><p>The process of fertilization involves three stages,</p><ol><li>the acrosome reaction.</li><li>fusion of sperm and egg membranes</li><li>the cortical reaction</li></ol><p>Watch this great short animation of fertilization - in sea urchins.</p><p><iframe allowfullscreen="" frameborder="0" height="360" src="//www.youtube.com/embed/3t8tg9iX9Cc?rel=0" width="640"></iframe></p><p>Study the following cards and:</p><p style="text-align: center"><iframe height="410" src="https://quizlet.com/108792746/flashcards/embed" style="border:0" width="100%"></iframe></p><p>Arrange the seven steps in the <a href="/media/ib/biology/files/activity%20worksheets/hl_topics_ws/11humans/fertilization_steps_jumble.pdf" target="_blank" title="Worksheets"><img class="ico" src="../../../img/icons/exercise.png"> Seven steps of fertilization</a> into the correct order</p><p><iframe frameborder="0" height="420" scrolling="yes" src="/media/ib/biology/files/activity%20worksheets/hl_topics_ws/11humans/fertilization_steps_jumble.pdf" width="100%"></iframe></p><p>A model answer can be seen by clicking the eye icon</p><section class="tib-hiddenbox"><div class="yellowBg"><h3>Steps in the process of fertilization</h3><ol><li><strong>Sperm are attracted to the secondary oocyte by a chemical signal.</strong></li><li><strong>The first sperm to reach the zona pellucida binds and releases the contents of it’s acrosome</strong></li><li><strong>Enzymes from the acrosome digest a path through the zona pellucida for the sperm to the plasma membrane</strong></li><li><strong>The sperm’s plasma membrane fuses with the 2° oocyte’s plasma membrane which causes the cortical reaction.</strong></li><li><strong>Cortical granules inside the oocyte fuse with the plasma membrane and release their contents.</strong></li><li><strong>Enzymes from the cortical granules cause the zona pelucida to become hard preventing polyspermy.</strong></li><li><strong>The two nuclei inside the fertilized egg cell fuse and the nucleus of the zygote.</strong></li></ol></div></section><p style="text-align: center; "></p><hr class="hidden"><h3>Activity 3: Zygote development to blastocyst implantation</h3><p><span style="background-color: rgb(240, 240, 240);">Once the egg has been fertilized it becomes a zygote and develops into an embryo</span></p><div class="blueBg"><h3>Zygote development summary</h3><ol><li><strong>The zygote (fertilized egg cell) continues dividing into 4 then 8 cells as it travels down the fallopian tube.</strong></li><li><strong>A hollow ball of cells called a ‘blastocyst’ is formed and cells begin to differentiate.</strong></li><li><strong>The zygote has become an embryo and next implants into the uterus lining (endometrium)</strong></li><li><strong>If the embryo successfully implants it will keep growing and produce hCG hormone.</strong></li><li><strong>hCG hormone causes the ovary to continue producing progesterone – pausing the menstrual cycle.</strong></li></ol></div><p>This short video shows the process.</p><p style="text-align: center;"><iframe allowfullscreen="" frameborder="0" height="360" src="//www.youtube.com/embed/EwTZ1fypivg?rel=0" width="640"></iframe></p><p><span style="background-color: rgb(240, 240, 240);">Finally read the eleven steps in the </span><a href="/media/ib/biology/files/activity%20worksheets/hl_topics_ws/11humans/fertilization_blastocyst_steppingstones.pdf" target="_blank" title="Worksheets"><img class="ico" src="../../../img/icons/exercise.png"> fertilization to implantation stepping stones worksheet</a><span style="background-color: rgb(240, 240, 240);">.<br>Use the steps as prompts and students have to help each other to cross all the steps by remembering the details for each step as they cross the imaginary river.</span></p><p><iframe frameborder="0" height="420" scrolling="yes" src="/media/ib/biology/files/activity%20worksheets/hl_topics_ws/11humans/fertilization_blastocyst_steppingstones.pdf" width="100%"></iframe></p><p style=""></p>This could be a homework activity to prepare for these steps which students might have to cross to get into the next lesson.<p style=""></p></div><div class="pinkBg"><h3>Teachers notes</h3><p>These three activities help students to learn the details of fertilization and the early growth of an embryo.</p><p>Each activity becomes increasingly complex.</p><p>The first questions from the videos in activity one could be done as a whole class and it aims to get students interested in the lesson. </p><p><strong>PHSE Note</strong>: These videos use animal examples of sexual reproduction and the IB Guide doesn't mention the personal health aspects of human relationships or the responsibilities of young people to respect each other. If you would like to include something in your lesson to address issues about personal health choices and relationships, this video is a great opening which could lead to a discussion about respect and responsibilities in relationships.</p><p><a href="https://www.youtube.com/watch?v=u7Nii5w2FaI" target="_blank" title="Videos"><img class="ico" src="../../../img/icons/video.png"><span class="anchor" id="video-1" name="video-1"> </span> Right click & edit link</a></p><p><iframe allowfullscreen="" frameborder="0" height="180" src="//www.youtube.com/embed/u7Nii5w2FaI?rel=0" width="320"></iframe></p><p>The second activity focuses on the details of fertilization.</p><p style="">There are some really good extra video clips on fertilization in the widget below.</p><p style="text-align: center"><code><iframe frameborder="0" height="550" scrolling="yes" src="https://www.magzinr.com/user/D_Faure/fertilization&view=magazine" style="overflow-x:scroll;overflow-y:hidden" width="100%"></iframe></code></p><p>A possible data analysis question could be analysis of HCG levels linked to early detection of pregnancy and an implanted blastocyst.</p><p>In a HL class, this would be a good place to complete the SL topic 6 understandings about IVF.</p></div><script>document.querySelectorAll('.tib-teacher-only').forEach(e => e.remove());</script>
</section>
</div>
</article>
</div><!-- /#main-column -->
</div>
</div><!-- /#content -->
</div>
</div>
<div id="footer" class="student-access">
<div class="wmap">
<div class="layout-wrapper">
<p>
© <script>document.write(new Date().getFullYear())</script> <em>InThinking / IB Documents (2) Team | Version: 31.01.2023</em>
|
<a target="_self" href="https://thinkib.net/subscribe/about-us">
About us
</a>
|
<a target="_self" href="https://thinkib.net/subscribe/legal">
Legal
</a>
|
<a target="_self" href="https://thinkib.net/subscribe/contact">
Contact
</a>
</p>
<p>
<a class="social" target="_blank" href="https://twitter.com/#!/inthinker">
<img src="../../../social/twitter-square.svg"> Twitter
</a>
<a class="social" target="_blank" href="https://www.facebook.com/inthinking.net">
<img src="../../../social/facebook-square.svg"> Facebook
</a>
<a class="social" target="_blank" href="https://www.linkedin.com/company/9s4we1">
<img src="../../../social/linkedin-square.svg"> LinkedIn
</a>
</p>
</div>
</div>
</div>
<input id="tzoffset" type="hidden" value="-3600"><div id="modal-session-expired" class="modal fade" tabindex="-1" role="dialog" data-backdrop="static" data-keyboard="false">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h3 style="margin-top: 0">Your session has expired</h3>
</div>
<div class="modal-body" style="padding: 10px;">
<p>You will have to reload and log in again.</p>
</div>
<div class="modal-footer">
<a id="session-expired" class="btn btn-danger pull-right" href="#">
<i class="fa fa-refresh"></i> Reload
</a>
</div>
</div>
</div>
</div>
<!-- Loading scripts at the end of the body means faster page loading -->
<script src="../../../js/jquery-1.10.2.min.js"></script>
<script src="../../../js/bootstrap.min.js"></script>
<script type="text/javascript" src="../../../js/jq-fancybox/jquery.fancybox.pack.js"></script>
<script src="../../../js/sidemenu/sidemenu.min.js?v=202011301145"></script><script src="../../../js/std-access/std-assignments-utils.min.js?v=202211281800"></script><script src="../../../js/std-access/std-comments-utils.min.js?v=202211281800"></script><script src="../../../js/std/std-task-utils.min.js?v=202211151130"></script><script src="../../../js/jq-mark.js/jquery.mark.min.js"></script><!-- MathJax only to render Math ML -->
<!--<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>-->
<script src="../../../ajax/libs/mathjax/2.7.0/MathJax.js?config=MML_HTMLorMML"></script>
<style>
.math-tex {
font-size: 1.15em !important;
}
.math-tex span.ML__text {
/*font-family: inherit !important;*/
}
.ML__text + .ML__mathit {
margin-left: 0 !important;
}
.math-tex img, .math-tex + img, span img {
box-shadow: none;
margin: 0;
}
</style>
<script src="../../../mathlive%400.86.0/dist/mathlive.min.js" async="" defer=""></script>
<script>
window.addEventListener('load',
() => MathLive.renderMathInDocument()
);
</script>
<script src="../../../js/header-circle.min.js?v=20220113"></script><script type="text/javascript" src="../../../js/cookies.min.js"></script>
<script type="text/javascript">
// The cookies alert
if (! readCookie("displayCookieConsent") && ! readCookie("y") ) {
var cookieMSG = "We use cookies. By continuing to use this website you are giving consent to cookies being used.";
setTimeout(function() {
$.ajax({
cache: true,
url: "js/cookiechoices.js",
dataType: "script",
success: function () {
cookieChoices.showCookieConsentBar(cookieMSG, 'close', 'Read more', "biology/legal#cookies");
}
});
}, 2000);
}
</script><script>var sAJAX='/pages/activity/user-stats-page.php?t=IBDocs(2)&x=6386';var sData='0ebg+I>F/4F[IxZ[hNZ6oiLuIxZg+NLcIxRSn4]inTg9q|TeLvc6hI1CLvc9o[Q[ovwMLvZ40In8/##/)##/)/6/|Lco|Te+NSahNk[54+6/Obc2iZQ2|ncIj>u2vr[5[bg+NLc/[g[2|TMojTe+iTahNk[5[/Sn4]intbZ';var loopSecs = 30;var lsKey = 'a0b5006f7f9a39fdf0bae05d208173ed';</script><script src="../../../js/user/user-stats-page.min.js?v=202102101800"></script><script>var sessionUpdateSecs = 600;</script><script type="text/javascript" src="../../../js/session-updater.js?v=20200831"></script>
<script type="text/javascript">
$(document).ready(function(){
function padLeft(str,max){return str.length<max?padLeft("0"+str,max):str}function padRight(str,max){return str.length<max?padRight(str+"0",max):str}$("body").on("click",'a[href="#"], a.fancybox-nav, a[data-toggle="tab"], a[data-toggle="dropdown"], a[data-toggle="collapse"], a[data-toggle="modal"]',(function(e){e.preventDefault()}));var topmenuOffset=0,topmenuHeight=0;function fixDiv(t,h){$(window).scrollTop()<topmenuOffset||$("#topmenu ul.level-1").is(":visible")?($("#topmenu").css({position:"",width:""}),$("#topmenu").removeClass("fixed-top"),$("body").css({"padding-top":"0"})):($("#topmenu").css({position:"fixed",top:"0",width:$("#topmenu").width()+"px"}),$("#topmenu").addClass("fixed-top"),$("body").css({"padding-top":topmenuHeight+"px"}))}function fixSearchNav(){var searchMenuTop=topmenuOffset+topmenuHeight,searchMenuH=$("#nav-menu-search").is(":visible")?$("#nav-menu-search").outerHeight():0;if($(window).scrollTop()>searchMenuTop-topmenuHeight){var borderBottomWidth=parseInt($("#topmenu").css("borderBottomWidth"))+1;$("#nav-menu-search").css({position:"fixed",top:topmenuHeight+borderBottomWidth+"px",left:"0",right:"0"}),$("#nav-menu-search").addClass("fixed-top"),$("body").css("padding-top",topmenuHeight+searchMenuH+"px")}else $("#nav-menu-search").css({position:""}),$("#nav-menu-search").removeClass("fixed-top"),$("body").css("padding-top","0")}$("#topmenu").length&&(topmenuOffset=$("#topmenu").offset().top,topmenuHeight=$("#topmenu").outerHeight(),fixDiv(),$(window).scroll((function(){fixDiv(),fixSearchNav()}))),$("a.toggle-menu-search").on("click",(function(e){e.preventDefault(),$("#nav-menu-search").slideToggle("fast",(function(){$(this).find('input[name="s"]').focus()}))}));var menuH=$("#topmenu").height(),itemH=$("#topmenu > nav > ul > li").height();function fancyScrollTo(id){$("html, body").animate({scrollTop:$("#"+id).offset().top-300},300)}function printSectionBlog(){var w=$(window).width()/2,h,windowSettings="height="+($(window).height()-100)+", width="+w+", left=0, top=0, resizable=no, ";windowSettings+="scrollbars=yes, toolbar=no, menubar=no, location=no, ",windowSettings+="directories=no, status=yes";var myWindow=window.open("","Page printer",windowSettings),containerHtml=["<html>","<head>","<title>Page printer</title>",'<link rel="stylesheet" type="text/css" href="'+window.location.origin+'/css/style.min.css?v=202211152130">','<link rel="stylesheet" type="text/css" href="'+window.location.origin+"/css/style"+SITE_TAG+'.min.css?v=202104061357">','<link rel="stylesheet" type="text/css" href="'+window.location.origin+'/css/snippets.min.css?v=202210181500">','<link rel="stylesheet" type="text/css" href="'+window.location.origin+'/css/article.min.css?v=202210181500">',"</head>","<body>",$("section#main-content").html().replace(/<span\sclass="MJX_Assistive_MathML".*?<\/span>/g,""),"</body>","</html>"].join("");containerHtml=containerHtml.replace(/src="files\//gi,'src="'+window.location.origin+"/files/"),myWindow.document.write(containerHtml),myWindow.document.close(),myWindow.focus(),setTimeout((function(){$.when(myWindow.print()).then(myWindow.close())}),1e3)}function PopupPrint(target){window.print()}$("#topmenu > nav > ul > li").each((function(){if(menuH>itemH&&$(this).position().top<1){var i=itemH+1;$(this).find("ul:first").css("margin-top","-"+i+"px")}})),$("#topmenu > nav > ul > li").on("mouseenter mouseleave",(function(e){var submenu=$("ul:first",this),submenuW=submenu.width();$(this).offset().left+submenuW>$(window).width()&&(submenu.css("right","0"),submenu.find("ul").each((function(){if(!$(this).hasClass("fixed")){var l=$(this).width()+submenuW;$(this).css("margin-left","-"+l+"px"),$(this).addClass("fixed")}})))})),$("a.showhider").click((function(e){e.preventDefault();var box="#"+$(this).attr("rel"),show='<i class="fa fa-eye"></i>',hide='<i class="fa fa-eye-slash"></i>';$(box).slideToggle("fast"),$(this).html($(this).html()==show?hide:show),$(this).attr("title","Show"==$(this).attr("title")?"Hide":"Show")})),$("a.scroll-to").click((function(e){e.preventDefault();var n=$("#"+$(this).data("target")).offset().top-70;$("html, body").animate({scrollTop:n},300)})),$("a.print-section-blog").click((function(e){e.preventDefault(),printSectionBlog()})),$(".print-button").click((function(e){var target;e.preventDefault(),PopupPrint("#"+$(this).data("target-id"))})),$(".alert.alert-success").delay(6e3).hide("fast",fixDiv());var fancyParent=1==$("body").find($("#main-article")).length?"#main-article":"body",fancyOptions={loop:!1,openEffect:"elastic",closeEffect:"elastic",nextEffect:"fade",prevEffect:"fade",parent:fancyParent,helpers:{title:{type:"inside"}}};if($("ul.gallery").each((function(){var rel=$(this).find("li:first-child > a:first-child").attr("rel");$('ul.gallery a.fancy[rel="'+rel+'"]').fancybox(fancyOptions)})),$(".carousel.slide").each((function(){var rel="gallery-"+$(this).data("id");$('.carousel.slide a.fancy[rel="'+rel+'"]').fancybox(fancyOptions)})),$("img.pop").parent("a").each((function(){$(this).attr("title",$(this).children("img").attr("alt"))})),$("img.pop").parent("a").fancybox({loop:!1,helpers:{title:{type:"inside"}}}),!are_cookies_enabled()){var msg='<div class="alert alert-error"><i class="fa fa-warning"></i> Your browser does not accept cookies from this site. Please enable cookies to log in.</div><div class="alert alert-info"><i class="fa fa-question-circle"></i> Enabling cookies in <a target="_blank" style="margin: 0; padding: 0;" href="https://support.mozilla.org/en-US/kb/enable-and-disable-cookies-website-preferences">Firefox</a>, <a target="_blank" style="margin: 0; padding: 0;" href="https://support.google.com/accounts/answer/61416?hl=en">Chrome</a>, <a target="_blank" style="margin: 0; padding: 0;" href="http://windows.microsoft.com/en-us/windows-vista/block-or-allow-cookies">Explorer</a></div>';$("#modal-login .modal-header").append(msg)}if($(".panel-expandable > .panel-heading").click((function(e){e.preventDefault();var panel=$(this).closest(".panel-expandable"),expandables=panel.hasClass("panel-has-footer")?".panel-body, .panel-footer":".panel-body";panel.find(".panel-body").is(":visible")?(panel.find(expandables).slideUp("fast"),panel.find(".expander > .fa-minus").removeClass("fa-minus").addClass("fa-plus")):(panel.find(expandables).slideDown("fast"),panel.find(".expander > .fa-plus").removeClass("fa-plus").addClass("fa-minus"))})),$("#modal-find-out-more").css({width:.8*$("#container").width()+"px","margin-left":-.4*$("#container").width()+"px"}),$(".modal-xxl").length){var modalTopPos=Math.round(.07*$(window).height());$(window).width()>1200&&$(".modal-xxl").css({"max-width":$(window).width()>960?"960px":$(window).width()+"px",width:$(window).width()>960?"960px":$(window).width()+"px","margin-left":$(window).width()>960?"-480px":Math.round($(window).width()/2)}),$(".modal-xxl").css("top",modalTopPos+"px"),$(".modal-xxl").on("shown",(function(){var mHeaderH=$(this).find(".modal-header").outerHeight(),mBody=$(this).find(".modal-body"),mBodyH=mBody.outerHeight(),mFooterH=$(this).find(".modal-footer").outerHeight(),bottomOfTheModal=modalTopPos+mHeaderH+mBodyH+mFooterH;if(bottomOfTheModal<$(window).height())mBodyH+=$(window).height()-bottomOfTheModal-60,mBody.css("max-height",mBodyH+"px");else{$(window).scrollTop(0),modalTopPos=10,$(".modal-xxl").css("top",modalTopPos+"px"),bottomOfTheModal=modalTopPos+mHeaderH+mBodyH+mFooterH,availableScroll=bottomOfTheModal-$(window).height()+modalTopPos;var lastPos=-1;$(window).on("scroll",(function(){var s=$(window).scrollTop()>availableScroll?availableScroll:$(window).scrollTop();newPos=modalTopPos-s,newPos!=lastPos&&($(".modal-xxl").css("top",newPos+"px"),lastPos=newPos)}))}}))}function popupHelp(url,title,w,h){var dualScreenLeft=void 0!==window.screenLeft?window.screenLeft:screen.left,dualScreenTop=void 0!==window.screenTop?window.screenTop:screen.top,width,height,left=(window.innerWidth?window.innerWidth:document.documentElement.clientWidth?document.documentElement.clientWidth:screen.width)/2-w/2+dualScreenLeft,top=(window.innerHeight?window.innerHeight:document.documentElement.clientHeight?document.documentElement.clientHeight:screen.height)/2-h/2+dualScreenTop,newWindow=window.open(url,title,"menubar=no,location=no,resizable=0, width="+w+", height="+h+", top="+top+", left="+left);return window.focus&&(newWindow?newWindow.focus():$('<div class="alert alert-warning" style="margin-bottom: 0px;"><p class="help-block">Pop Up blocked. Please allow Pop Ups in your browser settings.</p></div>').insertBefore("body")),newWindow}if($(".open-student-access-help").click((function(e){e.preventDefault();var h=$(window).height()-20,w=$(window).width()<1280?$(window).width():1280;popupHelp(helpURL,"Student Access Help",w,h)})),$(".pop-up-help").click((function(e){e.preventDefault();var url=$(this).attr("href"),title=$(this).data("title"),h=$(window).height()-20,w;popupHelp(url,title,$(window).width()<1280?$(window).width():1280,h)})),$("section.tib-hiddenbox").length){var count=0;$($("section.tib-hiddenbox").get().reverse()).each((function(){var box=$(this),revealButton;$("<a />").attr("class","btn showhider").attr("rel","hiddenBoxContent"+count).attr("style","margin-bottom: 0;").html('<i class="fa fa-eye"></i>').insertBefore(box);var newContainer=$("<div />").attr("class","hidden-content").attr("id","hiddenBoxContent"+count).html(box.html());newContainer.hide(),newContainer.insertBefore(box),box.remove(),count++})),$("a.showhider").on("click",(function(e){var container=$("#"+$(this).attr("rel"));container.is(":hidden")?(container.fadeIn("fast"),$(this).html('<i class="fa fa-eye-slash"></i>')):(container.fadeOut("fast"),$(this).html('<i class="fa fa-eye"></i>'))}))}
$('img.ico[src="/img/icons/comments.png"]').each((function(){var t=$(this).attr("title");$(this).removeAttr("title"),$(this).wrap('<a class="tib-popover" href="#" data-content="'+t+'" data-togle="popover" data-placement="top" />')})),$('img.ico[src="img/icons/comments.png"]').each((function(){var t=$(this).attr("title");$(this).removeAttr("title"),$(this).wrap('<a class="tib-popover" href="#" data-content="'+t+'" data-togle="popover" data-placement="top" />')})),$(".tib-popover").popover({html:!0,trigger:"hover",delay:{show:300,hide:300},placement:function(t,e){var o=$(e).position();return o.top>200?"top":o.left<515?"right":o.top<200?"bottom":o.left>515?"left":"top"}}).click((function(t){t.preventDefault()}));var carouselTime=6500;$("div.carousel.slide").carousel({interval:carouselTime}),$(".tib-indicators > img").click((function(){var t=$(this).index(),e;$(this).closest(".carousel.slide").carousel(t)})),setShowResultsListeners($("#container")),addMarksThreads($("#modal-std-write"));
$('a.btn.showhider').click(function(e) {
var showHiderId = $( this ).attr('rel');
if( $('#'+showHiderId).find('iframe').length > 0 ) {
$('#'+showHiderId+' iframe').each(function() {
if ( $(this).attr('src').indexOf('.pdf') > 0 ) {
this.contentWindow.location.reload(true);
}
});
}
});
});
</script>
</body>
</html>