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Which one of the following statements is...

Which one of the following statements is incorrect about the occurrence of notochord ?

A

It is present only in larval tail of ascidians

B

It is absent throughout life in humans from the very beginning

C

it is replaced by vertebral column in adult frog

D

It is present throughout life in Amphioxus

Text Solution

Verified by Experts

The correct Answer is:
B
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