c) Adi measured his breaths per minute when at rest and when playing football,
shown below. Why does the number of breaths per minute change?
Activity
Number of breaths per minute
At rest
15
Playing football
35
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c) Adi measured his breaths per minute when at rest and when playing football,
shown below. Why does the number of breaths per minute change?
Activity
Number of breaths per minute
At rest
15
Playing football
35
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Explanation:
It's because while in rest our heart pump blood normally but while playing football our blood pressure increase and our heart need more oxygen to pump more and more blood.