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Which is incorrect ?...

Which is incorrect ?

A

Presence of non-respiratory air sacs increases efficiency ot respiration in birds

B

In insects, circulation body fluids serve to distribute oxygen to tissues

C

Principle of counter - current flow facilitates efficient respiration in gills of fishes

D

Residual air in lungs slightly decreases the efficiency of respiration in mammals

Text Solution

Verified by Experts

The correct Answer is:
B
In insects, circulation body fluids serve to distribute oxygen to tissues
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