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which one of the following statements is...

which one of the following statements is totally wrong about the occurrence of notochord , while the other three are correct

A

it is absent throghout life in humans from the very beginning

B

it is present thorughout life in Amphixous

C

it is persent only in larvel tail in Ascidians

D

it is replaced bt a vertebral column in adult frog

Text Solution

Verified by Experts

The correct Answer is:
A
Cockroach and earthworm have common type of spermatheca. The spermathecae receive and store sperm cells during copulation.
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