When muscles are active cells use nutrients and oxygen at a higher rate and produce waste chemicals at and heat more rapidly describe how the interaction of two or more body systems helps to maintain homeostasis during periods of high muscle activity

1. An increased pulse rate indicates that a person has an increased heart rate and a faster flow of blood. When muscles are active, cells use nutrients and oxygen at a higher rate and produce waste chemicals and heat more rapidly.

2. The circulatory system works with the excretory system to get rid of wasted chemicals.

3. The student could perform an experiment using the scientific method. The student could title it, “ Effects of Sports Events on Pulse Rates”, and form a hypothesis and gather data from the experiment.

4. You would have to find while your conducting your experiment the contestants tested had a higher pulse rate after watching a sporting event than before watching one.

5. Exercising before, because it gets your blood pumping which brings more oxygen to your muscles.