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Question
In chordates, nerve cord develops from
In chordates, nerve cord develops from
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Solution
The correct option is C ectoderm
A single, hollow, tubular nerve cord is present beneath the body wall and just above the notochord in chordates. It is formed from a part of the ectoderm that rolls, forming the hollow tube. This is important, as it distinguishes chordates from other animal phyla, such as annelids and arthropods, which have solid ventral tubes. Therefore, the correct answer is ectoderm.
A single, hollow, tubular nerve cord is present beneath the body wall and just above the notochord in chordates. It is formed from a part of the ectoderm that rolls, forming the hollow tube. This is important, as it distinguishes chordates from other animal phyla, such as annelids and arthropods, which have solid ventral tubes. Therefore, the correct answer is ectoderm.
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