5_EvolutionDebate

5_EvolutionDebate - The Case For and Against Evolution Ch 22.3 R1(on Blackboard “ Teach both You know don’t be afraid of information.” Sarah

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Unformatted text preview: The Case For and Against Evolution Ch. 22.3 + R1 (on Blackboard) “ Teach both. You know, don’t be afraid of information.”- Sarah Palin, 2006 2 You are here 3 The movie Flock of Dodos by USC Prof Randy Olson tries to explain why many Americans don’t believe in evolution http://www.youtube.com/watch?v=GU8V5oTIwKM 4 Arguments against evolution 5 Argument: Evolution cannot be observed and therefore cannot be proven 6 Rebuttal: Evolution is observed all the time! 7 Rebuttal cont’d: We cannot observe the entirety of evolution and therefore rely on diverse lines of evidence, just as we do in other fields of science 8 Argument: There are no transitional fossils 9 “…Why, if species have descended from other species by fine gradations, do we not everywhere see innumerable transitional forms?”-from The Origin chapter entitled Difficulties on Theory 10 Rebuttal: The fossil record is spotty, but there are transitional forms Ex)Transition between fish and amphibians Acanthostega 11 Ex) Transition between bird and reptile Archeopteryx Ex) Transitions between horse species 13 Ex) Transition from terrestrial ancestor to whale 14 Ex) Transitional fossil flatfish with partially migrated eyes One eye on each side of head Transitional fossil: partial migration Both eyes on one side of head Nature 454: 169-170, 2008 15 Argument: Chance cannot create complexity 16 17 Rebuttal: Mutations are random. Selection is not. 18 Argument: The first step toward complex adaptations could not have been favored (= irreducible complexity ) 19 To suppose that the eye, with all its inimitable contrivances for...
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This note was uploaded on 07/26/2009 for the course BIO 120 taught by Professor Staff during the Fall '07 term at USC.

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5_EvolutionDebate - The Case For and Against Evolution Ch 22.3 R1(on Blackboard “ Teach both You know don’t be afraid of information.” Sarah

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