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.
C. Because when you are sitting your heart rate is chill put if you're moving really fast that means your heart rate is going up because you have to deep breaths over and over when you stop running.
