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1 vote
Oxygen diffuses from the

enters red blood cells.
A. Artery, plasma membrane
B. Capillary, Artery
C. Alveolus, capillary
D. Plasma membrane, Alveolus

User Mateuszb
by
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1 Answer

13 votes
C alveolus capillaries
User Nhan Cao
by
7.9k points
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