It’s important because your heart must beat faster during exercising because the increase of the heart rate also will need a increase of cardiac output to deliver the necessary blood flow to the muscles.
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Answer:
Carbon dioxide
Explanation:
Because The heart pumps the oxygen to the muscles that are doing the exercise. When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide.
Answer:
she will not be able to communicate properly
Explanation:
