Colonial cnidarians
A) include Obelia.
B) include the Portuguese man-of-war.
C) include corals.
D) may harbor dinoflagellate symbionts.
E) fit all of these descriptions.
Correct Answer:
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Q4: Animals that are hermaphroditic usually
A) fertilize their
Q5: Nematocysts are used for _.
A) reproduction
B) excretion
C)
Q6: The organs of excretion in flatworms are
A)
Q51: Which body plan is characterized by simple
Q52: The bulk of a jellyfish consists of
A)mesoderm.
B)mesohyl.
C)mesophyll.
D)mesoglea.
E)mesogel.
Q53: Tissues derived from mesoderm are absent in
A)sponges.
B)cnidarians.
C)flatworms.
D)sponges
Q54: In the life cycle of the fluke
Q56: In the life cycle of a typical
Q57: Cnidarians do NOT have
A)tentacles equipped with nematocysts.
B)three
Q60: A scolex is
A)the anterior attachment organ of
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