The heart rate increases during exercise. This increase in heart rate increases blood flow to the muscles. Explain, as fully as you can, why this increase in heart rate is necessary. pls help I am on a timer, think it is biology but not sure

A faster heart rate helps to supply the muscles with more glycogen. oxygen. constrict. (iii) During the exercise the arteries supplying the muscles would dilate.

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what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

light dependent reactions:

light independent reactions:

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