What part where the oxygen moves from alveoli to the blood through these tiny blood vessels that line the alveolar walls?
a. Cilia
b. Capillaries
C. Capybaras
d. Chromosomes
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Explanation:
capillaries
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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