Sleep increases a species' chances of survival in relation to its environmental demands,according to the _________________ model.

Question

Quizplus · Accepted Answer

The evolutionary/circadian model proposes that sleep serves as an adaptive function that increases an organism's chances of survival by allowing it to conserve energy and avoid predators during periods of inactivity that coincide with its species-specific environmental demands. The restoration model suggests that sleep is necessary to restore, repair and rejuvenate the body and mind, while the Darwinian model proposes that sleep is simply a byproduct of evolution and has no direct survival function. The cyclic model suggests that sleep is a result of natural cycles of arousal and fatigue.

Sleep Increases a Species' Chances of Survival in Relation to Its