The main supportive material in arthropods,nematodes,and annelids is
A) loose connective tissue only.
B) bone.
C) cartilage.
D) cuticle.
Correct Answer:
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Q21: Simple columnar epithelial cells with microvilli are
Q23: Flatworms differ from nematodes (roundworms)by having
A)a coelomate
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A)blastopore first become a
Q27: Large size
A)buffers an animal against temperature fluctuations.
B)provides
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Q30: The two major fluid compartments of the
Q31: What other characteristics might be present in
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Q47: A variety of nonnervous cells that insulate
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