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ikadub [295]
3 years ago
7

Molecules of O2 pass through the walls of the alveoli and enter the bloodstream through the

Biology
1 answer:
Scrat [10]3 years ago
3 0

i beleive that is the respiratory system but ill double check in  a m inute

alright heres all your answers for that test question 1 true

question 2 oxygen question 3 carbon dioxide question 4 true question 5 alvoei question 6 diaphram question 7 respitory system  the last 3 are all true i hope i helped

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