Name ____________________ Date __________ Class _________

Section 33-2: Vertebrates Adapt to Terrestrial Living

1. Reptiles Became the First Fully ___________ Vertebrates.
2. What were two significant adaptations that enabled reptiles to live on land?
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3. What common ancestor do birds, crocodiles and dinosaurs share (fig 33-11)
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4. What reptile is the distant ancestor of mammals (fig 33-11) _____________
5. What was Pangeaa?
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6. The "Age of Dinosaurs" was the _______________ Period
7. Compare ectotherms to endotherms.
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8. What evidence suggests that a meteor caused the dinosaur extinction?
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9. Today, Only __________ Groups of Reptiles Remain
10. List the four groups of existing reptiles.
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11. What are two ways crocodiles are similar to birds?
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12. ______________ Replaced Extinct Dinosaurs
13. Mammals are descendents of the extinct order of reptiles called _________
14. Name two examples of enormous mammals that lived during the ice age.
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15. Why are the La Brea Tar Pits a valuable resource for learning about ancient mammals?
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16. Today, There are Three Groups of ______________________
17. What are the characteristics of marsupials?
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18. What are the characteristics of placental mammals?
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19. Name three marsupials. ____________________________________________
20. Birds May Have Evolved from _________________
21. What features did Archaeopteryx have in common with dinosaurs?
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22. What features did Archaeopteryx have in common with birds?
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23. Today, ____________ Are the Largest Group of Terrestrial Vertebrates
24. Relationships among families of modern birds are inferred from studies of _______ similarity.
25. Place the following birds in the order in which the evolved, based on DNA analysis. Write the correct order 1-4 in the space
_______ ducks, geese, waterfowl
_______ birds of prey, flamingos
_______ woodpeckers, owls, parrots
_______ ostriches