The water current in the body of a cephalopod mollusc provides
A) oxygen for respiration.
B) jet power for rapid locomotion.
C) a means of carrying wastes and gametes out of the body.
D) All of the choices are cephalopod uses for their body water currents
E) None of the choices is correct Review "Form and Function" in chapter 16.Water circulating through the mantle cavity,over the gills,and exiting via the siphon serves in locomotion,gas exchange,and as a means to remove wastes and reproductive products from the body.
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Q30: When cephalopods hatch from their eggs,they are
A)trochophore
Q31: The intromittent organ of male cephalopods is
Q32: The main structures that taste food and
Q33: Although snails and some other molluscs are
Q34: The membranes that hold the internal organs
Q36: Most freshwater clams have a bivalve _
Q37: Cephalopods feed on
A)microscopic organisms.
B)fish,molluscs,crustaceans,and worms.
C)seaweed.
D)whales and porpoises.
E)None
Q38: The _ is the layer on the
Q39: The circulatory system of cephalopods is more
Q40: Gaseous exchange in gastropods may involve
A)gills.
B)lungs.
C)mantle.
D)body surface.
E)All
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