The combination of a true coelom, repeating body segments, and lack of a rigid external protective covering allowed the annelids to
A) evolve complex body shapes.
B) move through rocky marine sediments.
C) become hermaphroditic.
D) efficiently exchange gases.
E) become larger than their ancestors.
Correct Answer:
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Q136: Which two features are characteristic of lophotrochozoans?
A)
Q137: Refer to the figure. Q138: The mollusks are a very diverse group Q139: Ecdysis, a feature common to the ecdysozoans, Q140: Which statement about ecdysozoan exoskeletons is false? Q142: Which of the following are not lophotrochozoans? Q143: The firm exoskeleton of insects has protective Q144: Refer to the figure. Q145: Both rotifers and flatworms possess Q146: Which statement about bryozoans is false?
A)
A)
A) a complete
A) Most
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