Multiple Choice
At some point during development, all members of the ____ phylum have a hollow dorsal nerve cord, a perforated pharynx, a notochord, and segmented muscles in both the body wall and postanal tail.
A) Hemichordata
B) Echinodermata
C) Cnidaria
D) Arthropoda
E) Chordata
Correct Answer:

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Correct Answer:
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