Kaitididnot Kaitididnot

06-06-2020
Biology

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____ are the small sacs that are the site of gas exchange in the lungs

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DrMantisToboggan DrMantisToboggan

06-06-2020

Answer:

alveoli

Explanation:

They are the smallest structures in our lungs where capillaries exchange O2 and CO2 in blood.

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