Concerning reproduction in Bivalvia,
A) they tend to be hermaphroditic.
B) fertilization is usually external.
C) development is direct (no larva) .
D) the adult stage is called a glochidium.
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Q3: In coelomate animals,the coelom
A)develops as a secondary
Q4: The Polyplacophora
A)have a coiled shell.
B)live in the
Q5: The molluscs are the second most diverse
Q6: The water current in the body of
Q7: Members of the class Monoplacophora were believed
Q9: Most molluscs are found in fresh water,but
Q10: The mantle cavity in a mollusc houses
Q11: The cephalopod _ has a mantle length
Q12: Molluscs are important to humans because of
Q13: Molluscs evolved in fresh water,and therefore the
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