The Membranes That Hold the Internal Organs in Place in Coelomates

Q23: Cultured pearls are made by<br>A)cutting spherical balls

Q24: The Monoplacophora<br>A)lack a shell.<br>B)live in fresh water.<br>C)lack

Q25: The _ is the layer on the

Q26: A Nautilus differs from a snail because<br>A)the

Q27: The intromittent organ of male cephalopods is

Q29: Opisthobranchs and pulmonates are both gastropods.What are

Q30: The _ _ projects into a bivalve

Q31: Which of the following statements is NOT

Q32: Most freshwater clams have a bivalve _

Q33: The circulatory system of cephalopods is more