Molting is
A) the anterior attachment of a tapeworm.
B) the feeding organ of a fluke.
C) an appendage of a polychaete.
D) the periodic shedding of the outer body layer.
E) the larva of an aquatic insect.
Correct Answer:
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Q34: Nematocysts are
A) reproductive cells.
B) excretory organs.
C) sets
Q49: All mollusks have
A)a mantle.
B)a shell.
C)gills.
D)lungs.
E)all of these
Q50: Cnidarians do NOT have
A)tentacles equipped with nematocysts.
B)a
Q51: Squids arexamples of
A)cephalopods.
B)pseudopods.
C)monopods.
D)gastropods.
E)polypods.
Q52: Which of thfollowing organisms possesses a segmentebody
Q53: Snails arexamples of
A)cephalopods.
B)pseudopods
C)monopods.
D)gastropods.
E)polypods.
Q55: Bilateral symmetry is characteristic of a
A)cnidarian
B)roundworm
C)echinoderm
D)corals
E)flatworm
Q56: Which body plan is characterizeby simplgas exchangmechanisms,
Q58: Flatworms have
A)one sex.
B)both sexes.
C)only the male sex.
D)only
Q59: Cephalopods arthonly mollusks that possess
A)a mantle.
B)gills.
C)a closed
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