English, asked by ninjashyperness, 1 year ago

Answer this fast please!

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Answered by mdarifhussain2015
0

Answer:

P is Oxygen and Q is carbon dioxide

Explanation:

Alveoli are an important part of the respiratory system. whose function:- it is to exchange oxygen and carbon dioxide molecules to and from the bloodstream. These tiny, balloon-shaped air sacs sit at the very end of the respiratory tree and are arranged in clusters throughout the lungs.

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