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In human foetus , the heart begins to be...

In human foetus , the heart begins to beat at developmental age of :

A

`4^(th)-5(th)` week

B

`1^(st)-2^(nd)` week

C

`6^(th)-7^(th)` week

D

`8^(th)-9(th)` week

Text Solution

Verified by Experts

The correct Answer is:
A
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