The independent variables in this experiment are the levels of activity which

The independent variables in this experiment are the

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homeostasis during any activity level. The independent variables in this experiment are the levels of activity which is rest pre-exercise, exercise and rest post-exercise. The dependent variables will be the results, for example the heart rate or respiratory rate at the different activity periods. Methods In order to measure physiological responses, a volunteer was picked, and that person was told to rest 12 minutes before exercising, later they were told to exercise by riding a stationary bike for 20 minutes and to rest 12 after they had exercised. The 12 minutes of rest pre-exercise, the 20 minutes of exercise and the 12 minutes of post-exercise were the three activity periods. The volunteer was supposed to exercise at a moderate pace to just be able to see changes not to become overheated or out of breath. The volunteer had to be healthy in order to volunteer to exercise. The respiratory rate and volume, heart rate, blood pressure and sweat rate were all measured on the volunteer every four minutes. In order to measure respiratory rate, the volunteer was told to lift one finger while inhaling and to put the finger down while exhaling. The respiratory rate was measured for fifteen seconds and then that number was multiplied by 4 in order to get the breaths per minute. The breaths per minute were measured every four minutes they were measured even when the volunteer was exercising. In order to measure the respiratory volume a bell respirometer was used. The bell respirometer has one-way valves which mean that the volunteer can inhale air from their surroundings and exhale air into the bell respirometer. The
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