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ASAP please help me! What is a dorsal notochord? A.part of the nervous system in both vertebrates and invertebrates. B.part of most chordate embryos that develops into a spinal column (vertebrae). C.part of chordates that protects the circulatory system. D.part of mammals only that develops into the spinal column.

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Answer:

B

Explanation:

part of most chordate embryos that develops into a spinal column (vertebrae).

It is also the development of the backbone of an embryo,that later becomes a spine

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