summerwhitehood summerwhitehood

05-12-2021
Biology

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What are three characteristics of alveolus? <3

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perrinnikeena perrinnikeena

05-12-2021

1.They give the lungs a really big surface area.

2.They have moist, thin walls (just one cell thick)

3.They have a lot of tiny blood vessels called capillaries.

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