The air sacs at the end of the smallest are tubes inside the lungs are called_____*
A)larynx
B)branchi
C)alveoli
D)branchioles
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Within the lungs, the bronchi branch into smaller bronchi and even smaller tubes called bronchioles (BRAHN-kee-olz). Bronchioles end in tiny air sacs called alveoli, where the exchange of oxygen and carbon dioxide actually takes place
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The air sacs at the end of the smallest are tubes inside the lungs are called alveoli.
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