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comparative anatomy

A basic look at comparative anatomy

ted williams

on 10 May 2013

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Transcript of comparative anatomy

EQ: What are the ways we can tell if organisms are related through evolution? Comparative anatomy and how its used to show evolution Comparative anatomy: Looking at body parts to decide how closely related organisms are Vestigial:
You inherited it but you dont use it anymore Homologous structures may not necessarily perform the same function but they share a common ancestor Homologous Structures: Structures that have same function but don't come from common ancestor with the same feature Analogous Structures Summary: We have looked at DNA and Body parts to show evolutionary relationships and relatedness. Explain to me how these two things are related......10 points 1 Three big groups that we categorize into: Vestigial Homologous Analogous Its being selected against and eventually will go away structures have adapted over time to meet the needs of organisms environment 5 4 3 2 6 results from convergent evolution: same problem but different neighborhoods AND DIFFERENT SPECIES or Tell me which type of evolution (Divergent or Convergent evolution) would best explain vestigial structures, defend you're response...10 points do both and get 15 points for your summary (5 extra credit points) or write this slide in your summary section of handout
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