whitney7168 whitney7168

04-11-2019
Biology

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The increase in heart rate at the very beginning of exercise is due to

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04-11-2019

Answer:

a greater volume of blood returning to the heart

Explanation:

Your heart rate goes up when your heart starts pumping faster.

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chickenjiggle13 chickenjiggle13

04-11-2019

Answer:

A greater volume of blood returning to the heart.

Explanation:

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