morganbhrocksMorgan morganbhrocksMorgan

10-10-2016
Health

contestada

What are tiny air sacs through which oxygen and carbon dioxide pass in and out of the bloodstream

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HBR2001 HBR2001

10-10-2016

They are called alveoli.

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laurenroberts87 laurenroberts87

10-10-2016

Alveoli is the answer

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