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Biology 19 Online
OpenStudy (sneakysquash):

Oxygen and carbon dioxide pass back and forth between the alveoli and the blood through _____. -veins -arteries -capillaries -bronchioles

OpenStudy (anonymous):

Oxygen and carbon dioxide easily pass back and forth between the alveoli and the blood through the capillaries.

OpenStudy (sneakysquash):

thanks.

OpenStudy (anonymous):

welcome

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