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Health, 27.09.2019 21:30 mariahrpoulin1511

Air is forced into the lungs by the contraction of the
a. alveoli.
c. diaphragm.
b. bronchioles.
d. heart.

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Air is forced into the lungs by the contraction of the
a. alveoli.
c. diaphragm.
b...
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