33.
why would the number and size of growth lines vary among clams?

34. the nervous system of a clam is very simple compared to that of other mollusks. How can a clam function with such a simple nervous system?

35. Clams reproduce by releasing eggs and sperm into water. would you expect clams to release large or small number of eggs and sperm? explain your answer.

36 is about squids….

Name two traits that squids share with other mollusks

please help!