2. What is the job of adductor muscles in clams?

3. Close the valves

4. Name three members of class Cephalopoda.

5. Nautiluses, cuttlefish, squids, octopi (3)

6. How do cephalopods locate their prey?

7. Sight

8. The similarity between the eyes of vertebrates and cephalopods is an example of ___________.

9. Convergent evolution

10. Tooth shells belong to which class of mollusk?

11. Scaphopoda

12. What is the common name for members of the class polyplacophora?

13. Chitons

14. The diversity of body forms and life- styles in the phylum Mollusca is an excellent example of __________.

15. Adaptive radiation

16. In mollusks, what contains organs for digestion, circulation, reproduction, and excretion.

17. Visceral mass

18. What is the name of the male tentacle modified for spermatophore transfer?

19. hectocotylus

20. What supports a mollusk’s body

21. Hydrostatic or hydraulic skeleton

22. How many described species of mollusks are there?

23. 100,000

24. Where does gas exchange occur in bivalves?

25. The gills

26. What are the two main regions of the mollusk body?

27. Aquatic gastropods’ excretory product is mainly __________.

28. Ammonia

29. head-foot and the visceral mass

30. How does the mantle protect a mollusk?

31. secretes the shell

32. What is the rough structure in the mouth of most mollusks?

33. Radula

34. What sets nautiluses apart from other cephalopods?

35. Their shell

36. Where is the mantle cavity located?

37. Between the mantle and the foot

38. Name two organisms in the class Gastropoda.

39. Slugs, snails, limpets (2)

41. How many degrees are turned during torsion?

42. 180

43. The mucous mass in the stomach of a gastropod is called the ___________.

44. Protostyle

45. Which mollusk class contains the most described species?

46. Gastropoda

47. The circulatory system of most mollusks could be described as __________.

48. open

49. Name 2 members of class Bivalvia.

50. Clams, oysters, mussels, scallops, etc…

51. What is the name for the oldest part of a bivalve shell?

52. umbo