Evolution: It's a Thing - Crash Course Biology #20
Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization.Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourseFollow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourseTable of Contents1) The Theory of Evolution 1:492) Fossils 2:423) Homologous Structures 4:364) Biogeography 7:025) Direct Observation 8:52References for this episode can be found in the Google document here: http://dft.ba/-2Oyuevolution, theory, biology, science, crashcourse, genetics, gene, facts, fossil, fossil record, dinosaur, extinct, extinction, organism, dorudon, rodhocetus, vestigial, structure, similarity, homologous structure, related, relationship, morganucodon, fore limb, hind limb, vertebrate, molecule, DNA, RNA, chimpanzee, fruit fly, biogeography, marsupial, finches, direct observation, drug resistance, resistance, selective pressure, italian wall lizard
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