weekfourstudy - 9. Are hair and scales epidermal structures...

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Biol 201B (Berta) Study Questions Week 4 1. Define the following terms: imprinting, diphyodont, altruism, heterodont, ethology, oviparous, homeothermic, trophoblast, sign stimuli, imprinting, fitness 2. Briefly explain the origin of the mammal middle ear bones? 3. Explain how marsupials and placental mammals exhibit convergent evolution. 4. How does respiration in a mammal differ from that of a bird? 5. List four synapomorphies that unite all mammals. Provide an advantage that each of these adaptations provided mammals in contrast to the reptilian primitive condition. 6. Why is egg laying in monotremes not considered an apomorphy for the group? 7. Describe and distinguish the patterns of reproduction in monotremes, marsupials and placental mammals. 8. How is a bat flight and bird flight similar? How do they differ?
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Unformatted text preview: 9. Are hair and scales epidermal structures why or why not? 10. Describe 3 major anatomical/physiological changes in deep diving mammals? 11. Give specific examples of innate vs. learned behavior. 12. Give an example of a behavior that has both innate and learned components. What is the evidence that it is both? 13. Which two groups of mammals echolocate? 14. The mammal-like reptiles that mammals evolved from are_______? 15. Be able to explain the three processes that occur in the mammal kidney. 16. Why is the mammal kidney referred to as a countercurrent exchange multiplier? 17. What is meant by the ultimate cause of behavior? Give an example. 18. What is altruistic behavior and how might it be related to kin selection?...
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