Science, asked by harpreetpandher678, 5 months ago

microscopic air sacs in lungs

Answers

Answered by Anonymous

3

Explanation:

Alveoli are microscopic air sacs served by the bronchioles. Hundreds of millions of alveoli exist inside each lung. They are the terminal ends of the respiratory tract and the sites of external respiration—the exchange of gases between the air and the bloodstream.

Answered by vishva50

1

Answer:

alveoli are the microscopic air sacs present in lungs

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