{"id":19653,"date":"2018-05-11T15:15:25","date_gmt":"2018-05-11T20:15:25","guid":{"rendered":"http:\/\/www.kaptest.com\/blog\/prep\/?p=19653"},"modified":"2024-04-19T22:37:55","modified_gmt":"2024-04-19T22:37:55","slug":"ap-biology-notes-the-origin-of-life-and-natural-selection","status":"publish","type":"post","link":"https:\/\/wpapp.kaptest.com\/study\/ap-biology\/ap-biology-notes-the-origin-of-life-and-natural-selection\/","title":{"rendered":"AP Biology Notes: The Origin of Life and Natural Selection"},"content":{"rendered":"<p>\t<div   class='av_promobox  avia-button-no   avia-builder-el-0  el_before_av_heading  avia-builder-el-first '>\t\t<div class='avia-promocontent'><p>\n<strong>Three&nbsp;Things to Know about&nbsp;The Origin of Life and Natural Selection<\/strong><\/p>\n<ol>\n<li>It is thought that the chemical components of life on Earth originated through radiation and storms. These compounds became increasingly complex, forming protobionts and, ultimately, living organisms.<\/li>\n<li><span style=\"font-weight: 400\">According to Darwin, species evolve via natural selection, in which animals with certain traits are more likely to survive and reproduce, passing on those traits. <\/span><\/li>\n<li><span style=\"font-weight: 400\">Selection can be stabilizing (median is encouraged), directional (the norm shifts toward one extreme), or disruptive (extremes are favored over the norm).<\/span><\/li>\n<\/ol>\n<p>\n<\/div><\/div><br>\n<div  style='padding-bottom:10px; ' class='av-special-heading av-special-heading-h3    avia-builder-el-1  el_after_av_promobox  el_before_av_heading  '><h3 class='av-special-heading-tag '  itemprop=\"headline\"  >Key Topics&#8211;The Origin of Life and Natural Selection<\/h3><div class='special-heading-border'><div class='special-heading-inner-border' ><\/div><\/div><\/div><br>\nRemember that the AP Biology exam tests you on the depth of your knowledge, not just your ability to recall facts. While we have provided brief definitions here, you will need to know these terms in even more depth for the AP Biology exam.<br>\n<div  style='padding-bottom:10px; ' class='av-special-heading av-special-heading-h4    avia-builder-el-2  el_after_av_heading  el_before_av_heading  '><h4 class='av-special-heading-tag '  itemprop=\"headline\"  >Origin Hypothesis <\/h4><div class='special-heading-border'><div class='special-heading-inner-border' ><\/div><\/div><\/div><\/p>\n<ul>\n<li><strong><b>Protobionts: <\/b><\/strong>Metabolically active protein clusters that inaccurately reproduce; possible evolutionary precursors to prokaryotic cells<\/li>\n<\/ul>\n<div  style='padding-bottom:10px; ' class='av-special-heading av-special-heading-h4    avia-builder-el-3  el_after_av_heading  el_before_av_promobox  '><h4 class='av-special-heading-tag '  itemprop=\"headline\"  >Darwin and Natural Selection <\/h4><div class='special-heading-border'><div class='special-heading-inner-border' ><\/div><\/div><\/div>\n<ul>\n<li><b>Charles Robert Darwin (1809-1882): <\/b><span style=\"font-weight: 400\">Naturalist who came up with the theory of evolution based on natural selection<\/span><\/li>\n<li><b>Jean-Baptiste de Lamarck (1744-1829): <\/b><span style=\"font-weight: 400\">Naturalist who studied evolution and classified invertebrate organisms; Lamarck produced several theories of evolution including Philosophie Zoologique; best known for his incorrect theory of inheritance of acquired characteristics<\/span><\/li>\n<li><b>Theory of evolution: <\/b><span style=\"font-weight: 400\">Theory that organisms have developed over time to produce current biomes<\/span><\/li>\n<li><b><\/b><strong><b>Natural selection: <\/b><\/strong>Process by which organisms best adapted to their environment survive to pass their genes on through offspring; idea pioneered by Charles Darwin<\/li>\n<li><b><i>The Origin of Species<\/i><\/b><b>: <\/b><span style=\"font-weight: 400\">Charles Darwin\u2019s book in which he expressed his theory that species evolve through natural selection<\/span><\/li>\n<li><b>Fitness: <\/b><span style=\"font-weight: 400\">The ability of an organism to contribute its alleles and, therefore, its phenotypic traits to future generations<\/span><\/li>\n<li><b><\/b><strong><b>Stabilizing selection: <\/b><\/strong>Selection that maintains the same mean in a phenotypic distribution by removing individuals from both phenotypic extremes<\/li>\n<li><strong>Directional selection:<\/strong> Favors organisms within a population that have one extreme variation of a trait Disruptive (diversifying) selection: Favors organisms within a population with extreme variations of a trait over those with moderate variations<\/li>\n<\/ul>\n<p>\t<div   class='av_promobox  avia-button-yes   avia-builder-el-4  el_after_av_heading  el_before_av_sidebar '>\t\t<div class='avia-promocontent'><p>\nClick the button to the right for&nbsp;a printable version of our Origin of Life and Natural Selection&nbsp;notes!<\/p>\n<\/div><div  class='avia-button-wrap avia-button-right ' ><a href='https:\/\/docs.google.com\/document\/d\/10Z30SN_30fakWcgMB_6yiLi23ZGmnAs7KK4S-nOoMCA\/edit?usp=sharing' class='avia-button  avia-color-theme-color   avia-icon_select-no avia-size-large avia-position-right ' target=\"_blank\" rel=\"noopener noreferrer\"><span class='avia_iconbox_title' >Full Notes<\/span><\/a><\/div><\/div><br>\n<strong><span style=\"font-weight: 400\"><\/span><\/strong><\/p>\n\n<div  class='avia-builder-widget-area clearfix  avia-builder-el-6  el_after_av_sidebar  avia-builder-el-last '><div id=\"custom_html-85\" class=\"widget_text widget clearfix widget_custom_html\"><div class=\"textwidget custom-html-widget\"><div><div class='op-interactive' id='65e692c654d20728b8d0c02e' data-title='Barrons AP Biology Quiz' data-url='https:\/\/kaplannorthamerica.outgrow.us\/65e692c654d20728b8d0c02e?vHeight=1' data-width='100%'><\/div><script>var og_temp=document.createElement('script');og_temp.async=true;og_temp.defer=true;og_temp.src='\/\/dyv6f9ner1ir9.cloudfront.net\/assets\/js\/nloader.js',og_temp.onload=function(){initIframe('65e692c654d20728b8d0c02e')},document.querySelector('head').appendChild(og_temp)<\/script><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Remember that the AP Biology exam tests you on the depth of your knowledge, not just your ability to recall facts. While we have provided brief definitions here, you will need to know these terms in even more depth for the AP Biology exam. Protobionts: Metabolically active protein clusters that inaccurately reproduce; possible evolutionary precursors [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":28112,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[82],"tags":[83],"_links":{"self":[{"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/posts\/19653"}],"collection":[{"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/comments?post=19653"}],"version-history":[{"count":6,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/posts\/19653\/revisions"}],"predecessor-version":[{"id":46273,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/posts\/19653\/revisions\/46273"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/media\/28112"}],"wp:attachment":[{"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/media?parent=19653"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/categories?post=19653"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/tags?post=19653"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}