Members of the ____ lineage have a pair of hinged shells that can be closed by contraction of one or two adductor muscles.
A) Cephalopoda
B) Polyplacophora
C) Bivalvia
D) Gastropoda
E) Scaphopoda
Correct Answer:
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Q38: Members of the _ flatworm lineage are
Q39: In sponges, spicules are _.
A) fibrous skeletal
Q40: Adult members of the _ Cnidarian lineage,
Q41: Only 180 living species of velvet worms,
Q42: Members of the _ Ecdysozoan phylum include
Q44: Members of the _ lineage, including slugs
Q45: Members of the _ flatworm lineage are
Q46: Chitin-reinforced bristles that protrude outward from the
Q47: Paired excretory organs found in most body
Q48: More than half of the known animal
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