Question

During exercise the amount of ----- carried in the blood to the muscle increases.

A. Oxygen
B.CO2
C.energy
D.callories

Answer 1

Oxygen

Step-by-step explanation:

In order to function properly (movement etc.) during exercise, muscles require oxygen. During exercise, the depth as well as the rate of breathing increase, which in turn increases the amount of oxygen inhaled.

Answer 2

A. Oxygen, this is why it is very important to keep breathing while exercising.