Echinoderms are unique in their:
A) five-fold symmetry.
B) skeletons made of interlocking plates of protein.
C) water vascular system.
D) skeletons made of interlocking plates of calcite.
E) filter feeding.
Correct Answer:
Verified
Q15: Examine Figure 44.1, below. According to this
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Q17: Which of the following is NOT a
Q18: Compared with sponges, cnidarians have a wider
Q19: Animals are distinguished from other groups of
Q21: A protostome is distinguished by a(n):
A)endoderm that
Q22: Examine Figure 44.1, below. To which group
Q23: A deuterostome is distinguished by a(n):
A)endoderm that
Q24: Because they lack well-defined and complex organ
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