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How does exercise affect heart rate of 9th grade student? we set up an experiment testing different lengths of time of exercise (minutes) on the heart rate of students
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How does exercise affect heart rate of 9th grade student?

we set up an experiment testing different lengths of time of exercise (minutes) on the
heart rate of students

User Sid Holland
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by doing exercise, your heart rate should increase. when u exercise, more oxygen is pumped from the lungs to the brain to keep you alive.
User Fahad Ajmal
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