Smaller mammals use proportionately more energy than larger mammals; that is, it takes more energy per gram to power a mouse than a human. a typical mouse has a mass of 20 g and, at rest, needs to consume 3.0 cal each day for basic body processes.? if a 68 kg human used the same energy per kg of body mass as a mouse, how much energy would be needed each day? ? what resting power does this correspond to? ?