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Unformatted text preview: derived character vs. primitive characteristic shared, derived characteristics with respect to most common ancestor for the two top right animals because they both share an orange face which was derived (?) from their ancestor shared, primitive characteristics are shared but primitive because it came from original ancestor derived characteristic such as spots is completely derived because it's new to the species and didn't come from the ancestors this type of tree is a cladogram and nested groupings within are called clades 8. convergence=when animals that are not closely related converge on a similar type of trait, for example both 1 and 3 on top have red eyes but their last common ancestor did not have red eyes, both acquired characteristic independently of one another homologous=similar characteristics by shared ancestors (tend to be primitive but not always) 9. a split off a long time ago, b and c have more recent common ancestor 10. synapomorphy=shared derived...
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This note was uploaded on 05/03/2008 for the course ANTH 200Lg taught by Professor Yamashita during the Spring '07 term at USC.
- Spring '07