Biology, 10.04.2021 01:30 ferny5106

The heart is important for transporting oxygen to the muscles when we exercise. How does the heart rate change when we go from sitting on a chair to running up the stairs? A. The heart rate stops.
B. The heart rate gets slower.
C. The heart rate gets faster.
D. The heart rate stays the same.

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The heart is important for transporting oxygen to the muscles when we exercise. How does the heart r...