why does the rate of breathing increases while vigorous exercise plsss ans it in 50 words
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During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest. The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.
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When we breathe in air is transported to the lungs. Air (oxygen) plays a big role in respiration. When we do vigorous exercise, more energy is needed so oour breathing rate increases so that more air is supplied to the body and more energy is released by the process of respiration.
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