After reading the paragraph below, answer the questions that follow.
Most bats are inactive during the day (this is known as torpor) and feed during the night. The graph below shows hypothetical data for a bat species.

Why does the relationship between metabolic rate and temperature exist?
◦ Cellular respiration causes the body to cool because all the energy is used to make ATP.
◦ Cellular respiration requires organisms to take in heat energy.
◦ A by-product of cellular respiration is heat.