Question

give three reasons why alveoli are good for gas exchange

Answer 1

Answer:

Here are some features of the alveoli that allow this:

they give the lungs a really big surface area.

they have moist, thin walls (just one cell thick)

they have a lot of tiny blood vessels called capillaries.

Explanation:

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Answer 2

Answer:

alveoli are a balloon like structure. they give the lungs a really big surface area. they have moist, thin walls (just one cell thick) they have a lot of tiny blood vessels called capillaries.

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