What do sponges and cnidarians have in common?
A) Organization of cells into tissues
B) Mobility
C) Symmetry
D) None of these
Correct Answer:
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Q4: Which worm has no body cavity?
A)Flatworms
B)Annelids
C)Roundworms
D)All of
Q6: Which one of the following is a
Q7: What acts as both a circulatory system
Q13: The radial symmetry of adult echinoderms could
Q14: Which phylum of worms includes the leeches?
A)Flatworms
B)Annelids
C)Roundworms
D)None
Q15: Which body form of the cnidarians is
Q15: Most animals fall into one of how
Q17: Many, though not all, mollusks have a
Q23: Serial repetition of segments is a defining
Q29: The echinoderms are most closely related to
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