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Which one of the following statements is...

Which one of the following statements is
incorrect?

A

The presence of non-respiratory air sacs increase the efficiency of repiration in birds .

B

In insects, circulating body fluids serve to distribute oxygen to tissues.

C

The principle of countercurrent flow facilitates efficient respiration in gills of fishes .

D

The residual air in lungs slightly decreases the efficiency of respiration in mammals.

Text Solution

Verified by Experts

The correct Answer is:
B
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