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SVEN [57.7K]
3 years ago
14

Oxygen passes into the bloodstream across the membranes in the lung by the process of.

Biology
1 answer:
Mashutka [201]3 years ago
3 0
In a process called diffusion, oxygen moves from the alveoli to the blood through the capillaries (tiny blood vessels) lining the alveolar walls. Once in the bloodstream, oxygen gets picked up by the hemoglobin in red blood cells.
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