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When you hold your breath, which of the ...

When you hold your breath, which of the following gas change in blood would first lead to the urge to breathe?

A

falling `O_(2)` concentration

B

rising `CO_(2)` concentration

C

falling `CO_(2)` concentration

D

rising `CO_(2)` and falling `O_(2)` concentration

Text Solution

Verified by Experts

The correct Answer is:
B
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