Multiple Choice
A notochord is
A) a strip of cartilage that forms a back and tail in all vertebrates.
B) a stiff ventral supporting rod.
C) replaced by the nerve cord during development.
D) a stiff dorsal supporting rod that is replaced by the vertebral column during development.
E) All of the choices are correct.
Correct Answer:

Verified
Correct Answer:
Verified
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