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At the end of the bronchioles are little air sacs called alveoli. the alveoli are connected to the network of blood vessels, which are connected to veins and arteries. The air in the alveoli diffuses into the blood in these vessels. this process is called .
A. How urine exits the body
B. How air enters the body through airways
C. How air gets into the blood from the bronchial tubes
D. How carbon dioxide leaves the body
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At the end of the bronchioles are little air sacs called alveoli. the alveoli are connected to the n...
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