Mammalian lungs have an enormous number of minute alveoli (air sacs). This is to allow

more surface area for difusion of gases

more space for increasing the volume of inspired air

more nerve supply to keep the lungs working

more spongy texture for keeping lung in proper shape.

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Answer: ASolution: The numbe of alveoli in the human lungs has been estimated to be approximately

300

million. This cnormous number of alveoli are meant to increase surface area of lungs for diffusion of gases.

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Question Text	Mammalian lungs have an enormous number of minute alveoli (air sacs). This is to allow
Answer Type	Text solution:1
Upvotes	150