The calcification of an internal skeleton is characteristic of the
A) urochordates.
B) echinoderms.
C) hemichordates.
D) brachiopods.
E) phoronids.
Correct Answer:
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Q13: Which of the following is not a
Q14: Members of which groups have lophophores?
A) Phoronids,
Q15: Living deuterostomes comprise three clades, the echinoderms,
Q16: Which of the following statements about protostome
Q17: Which of the following did not occur
Q19: Nautiluses control their buoyancy by
A) adjusting salt
Q20: Insects whose hatchlings are sufficiently similar in
Q21: Along a rocky tide pool, you discover
Q21: Acorn worms and pterobranchs have a body
Q23: Which of the following groups has a
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