Biology, asked by XmartBoi, 5 months ago

What are alveolar? Write it's characteristics

Answers

Answered by rajendradahate151
0

Explanation:

Alveoli are tiny balloon shaped structures and are the smallest passageway in the respiratory system. The alveoli are only one cell thick, allowing the relatively easy passage of oxygen and carbon dioxide (CO2) between the alveoli and blood vessels called capillaries.

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