Biology, asked by paakizakhan9, 4 months ago

why in birds it's complete ventilation but in humans it is incomplete?

Answers

Answered by Anonymous

7

Answer:

Hey mate ur answer is here....!!

Explanation:

Birds have no diaphragm. Bird lungs do not expand or contract like the lungs of mammals. ... In the avian lung, the gas exchange occurs in the walls of microscopic tubules, called air capillariesThe respiratory system of birds is more efficient than that of mammals, transferring more oxygen with each breath.

Hope it helps.....!!

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