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Questions and Answers
What is the main purpose of breathing?
The main purpose of breathing is to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.
What is the waste product of cellular respiration?
The waste product of cellular respiration is carbon dioxide.
What transports gases to and from the cells?
The body's circulatory system transports gases to and from the cells.
What is the breathing or respiratory rate determined by?
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Where does gas exchange take place in the lungs?
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