Which of the following occurs in the lungs?

A) Air loses all of its oxygen.
B) Oxygen and carbon dioxide move from a lower concentration to a higher concentration.
C) Some of the oxygen in the air moves into the blood, and some of the carbon dioxide in the blood moves into the air.
D) As oxygen-poor blood travels through the lungs, it releases all of its carbon dioxide.
E) Gases move by bulk flow into and out of the blood.


C

Biology & Microbiology

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