Vertebrae
A) are characteristic of all chordates.
B) are the segmental divisions of the notochord.
C) surround and replace the notochord during embryonic development.
D) do not occur in gnathostomes.
E) have ventral projections that surround and protect the nerve cord.

Question

Quizplus · Accepted Answer

Vertebrae develop around the notochord during embryonic development, eventually forming the spinal column in vertebrates. This process involves the replacement and encasement of the notochord, rather than being segmental divisions of it.