What is the function of air sacs in birds?

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Question

(A) Birds possess air sacs that are connected to their lungs. These air sacs serve multiple functions,but their primary role in the context of flight

Vedclass · Accepted Answer

To reduce body weight

Vedclass · Answer

(A) Birds possess air sacs that are connected to their lungs. These air sacs serve multiple functions,but their primary role in the context of flight is to reduce the overall body density and weight,making it easier for the bird to fly. Additionally,they provide a continuous supply of oxygen to the lungs,which is essential for the high metabolic demands of flight.

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