How does the nerve cord of chordates differ from the nerve chord of other animals?
A) It does not develop until after the embryonic period.
B) It develops from the gill slits.
C) It is surrounded by bone.
D) It runs along the dorsal side of the body.
E) It does not extend into the tail.
Correct Answer:
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A)a ventral, hollow nerve cord.
B)a
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