2. Chapter 16 Fishes, Amphibians, and Reptiles

3. An animal with a skull and a backbone; includes mammals, birds, reptiles, amphibians and fish Click for Term

4. Vertebrate An animal with a skull and a backbone; includes mammals, birds, reptiles, amphibians and fish Click for Term

5. Segments of bone or cartilage that interlock to form a backbone Click for Term

6. Vertebrae Segments of bone or cartilage that interlock to form a backbone Click for Term

7. An animal that maintains a constant body temperature despite temperature changes in its environment, warm blooded Click for Term

8. Endotherm An animal that maintains a constant body temperature despite temperature changes in its environment, warm blooded Click for Term

9. An animal whose body temperature fluctuates with the temperature of its environment, cold blooded Click for Term

10. Ectotherm An animal whose body temperature fluctuates with the temperature of its environment, cold blooded Click for Term

11. Fanlike structures that help fish move, turn, stop and balance Click for Term

12. Fins Fanlike structures that help fish move, turn, stop and balance Click for Term

13. Bony structures that cover the skin of bony fishes Click for Term

14. Scales Bony structures that cover the skin of bony fishes Click for Term

15. Row of tiny sense organs along the sides of a fish’s body Click for Term

16. Lateral line system Row of tiny sense organs along the sides of a fish’s body Click for Term

17. Organs that remove oxygen from the water and carbon dioxide from the blood Click for Term

18. Gills Organs that remove oxygen from the water and carbon dioxide from the blood Click for Term

19. Small, sharp toothlike structures on the skin of cartilaginous fishes Click for Term

20. Denticles Small, sharp toothlike structures on the skin of cartilaginous fishes Click for Term

21. Balloon-like organ that is filled with oxygen and other gases; gives bony fishes their buoyancy Click for Term

22. Swim Bladder Balloon-like organ that is filled with oxygen and other gases; gives bony fishes their buoyancy Click for Term

23. A sac-like organ that takes oxygen from the sir and delivers it to the blood Click for Term

24. Lung A sac-like organ that takes oxygen from the sir and delivers it to the blood Click for Term

25. Aquatic larvae of an amphibian Click for Term

26. Tadpole Aquatic larvae of an amphibian Click for Term

27. Process in which an insect or other animal changes form as it develops from an embryo or larva to an adult Click for Term

28. Metamorphosis Process in which an insect or other animal changes form as it develops from an embryo or larva to an adult Click for Term

29. Prehistoric, reptile ancestor of mammals Click for Term

30. Therapsid Prehistoric, reptile ancestor of mammals Click for Term

31. Egg containing amniotic fluid to protect the developing embryo; usually surrounded by a hard shell Click for Term

32. Amniotic Egg Egg containing amniotic fluid to protect the developing embryo; usually surrounded by a hard shell Click for Term