8. When air goes to the air sacs oxygen goes to the
a. wall of the air sacs
b. wall of the lungs
C. wall of bronchioles
d. walls of the heart
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8. When air goes to the air sacs oxygen goes to the
a. wall of the air sacs
b. wall of the lungs
C. wall of bronchioles
d. walls of the heart
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b. wall of the lugs
Explanation:
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