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9. How are the alveoli designed to maximise the exchange of gases?​

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Answer:

ow are the alveoli DESIGNED to MAXIMIZE the exchange of gases? ... The alveoli are thin-walled and richly supplied with a NETWORK of blood vessels to facilitate the exchange of gases between blood and the air-filled in alveoli. They have a balloon-like structure that provides maximum surface area for exchange of gases.

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