Within the mollusks, only the cephalopods have a
A) radula.
B) hinged shell.
C) coelom.
D) tubular gut.
E) closed circulatory system.
Correct Answer:
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Q40: Which of these groups is characterized by
Q41: In the various cnidarian species
A) all live
Q42: Members of the phylum _are characterized by
Q43: Adult echinoderms that have radial symmetry lack
A)
Q44: Oysters are classified in the phylum
A) Echinodermata.
B)
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)
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