Biology, asked by bhemadeepika, 8 months ago

Why the exchange of gases happens only in alveoli, though arteries are present in
pharynx, trachea and bronchus ?send fast plz​

Answers

Answered by HarnoorSidhu22
1

Answer:

Because they fold to provide a wider surface area for gas exchange to take place and they are ventilated to remove carbon dioxide and to replenish oxygen levels in the alveolar air.

Explanation:

I hope it helps you.

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