Which of the following phyla is characterized by radially symmetrical members?
A) Arthropoda
B) Cnidaria
C) Platyhelminthes
D) Chordata
E) Annelida
Correct Answer:
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Q8: The first phylum with three germ layers
Q17: Q39: Trichoplax Q42: "Nerve net" describes the nervous system of Q43: Mesoglea is found in which of the Q45: Bilateral symmetry is characteristic of Q46: Fossil evidence of animal life dates back Q47: An organism that possesses a scolex and Q48: A planula is a Q49: Nematocysts are found only in
A)is a small, flattened, soft-bodied marine animal.
B)is
A)flatworms.
B)cnidarians.
C)annelids.
D)sponges.
E)none
A)cnidarians.
B)sponges.
C)jellyfish.
D)flatworms.
E)corals.
A)sedentary, attached, tree-shaped form
A)cnidarians.
B)nematodes.
C)crustaceans.
D)echinoderms.
E)sponges.
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