The low energy demands of nematodes allow them to survive without a
A) body cavity.
B) tubular gut.
C) reproductive system.
D) skeleton.
E) respiratory system.
Correct Answer:
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Q46: The tube feet of echinoderms that are
Q47: The venomous sea wasp is classified in
Q48: A hemocoel or blood cavity is found
Q49: A sea urchin is a member of
Q50: A snail is a(n)
A) arthropod.
B) echinoderm.
C) chordate.
D)
Q52: What distinguishes a free-living flatworm from other
Q53: The animals most like the ancestral protist
Q54: Spiders belong to the
A) cnidarians.
B) echinoderms.
C) mollusks.
D)
Q55: Which of the following animals uses a
Q56: A clam is a(n)
A) echinoderm.
B) mollusk.
C) chordate.
D)
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