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Chapter 34 Study Questions: 1. Identify at lest five derived traits of primates. How do pharyngeal slits function in feeding in tunicates and lancelets? 2. What characteristics do hagfishes have that tunicates and lancelets lack? 3. How are differences in lamprey and conodont anatomy reflected in each animal’s feeding method? 4. What key roles did mineralized bone play in the first vertebrates? 5. What derived characters do sharks and tuna share? What are some characteristics that distinguish tuna from sharks? 6. Contrast the habitats of the three surviving lineages of lobe-fins. 7. Some amphibians never leave the water, whereas others can survive in relatively dry terrestrial environments. Contrast the adaptations that facilitate these two lifestyles. 8. Defend or refute the following statement: The amniotic egg of a reptile is a closed system in which the embryo develops in isolation from the outside environment. 9. Identify four avian adaptations for flight. 10. Contrast monotremes, marsupials, and eutherians in terms of how they bear young. 11. Identify at lest five derived traits of primates. 12. How do the characteristics of Homo ergaster illustrate mosaic evolution? Chapter 34 Study Questions: 1. How do pharyngeal slits function in feeding in tunicates and lancelets? 2. What characteristics do hagfishes have that tunicates and lancelets lack? 3. How are differences in lamprey and conodont anatomy reflected in each animal’s feeding method? 4. What key roles did mineralized bone play in the first vertebrates? 5. What derived characters do sharks and tuna share? What are some characteristics that distinguish tuna from sharks? 6. Contrast the habitats of the three surviving lineages of lobe-fins. 7. Some amphibians never leave the water, whereas others can survive in relatively dry terrestrial environments. Contrast the adaptations that facilitate these two lifestyles. 8. Defend or refute the following statement: The amniotic egg of a reptile is a closed system in which the embryo develops in isolation from the outside environment. 9. Identify four avian adaptations for flight. 10. Contrast monotremes, marsupials, and eutherians in terms of how they bear young. 11. Identify at lest five derived traits of primates. 12. How do the characteristics of Homo ergaster illustrate mosaic evolution?