The metabolic rate is the rate at which metabolism occurs in a living organism. Whereas Body mass is the body size of a living organism. This lab indicated the smaller the living organism is, the higher the metabolic rate. This is due to the smaller animal displacing heat at a higher rate than a larger animal. Using the measure of oxygen consumption to determine the metabolic rate is the most commonly used because it is the most precise way to determine energy expenditure (ATP). It is the most accurate because it is using the rate of heat energy released from a living organism. The larger mouse consumed more oxygen per minute. The smaller mouse had the higher metabolic rate. The smaller mouse had the higher metabolic rate
