Question

the process of getting air into and out of the lungs
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Answer 1

Answer:

When you inhale (breathe in), air enters your lungs and oxygen from the air moves from your lungs to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathe out). This process is called gas exchange and is essential to life.

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Answer 2

Answer:

external respiration

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