Respuesta :
One of the earliest theories of sleep, sometimes called the adaptive or evolutionary theory, suggests that inactivity at night is an adaptation that served a survival function by keeping organisms out of harm's way at times when they would be particularly vulnerable.
Answer:
Adaptive theory of sleep is also called as evolutionary theory which states that period of inactivity evolved as a means of conservation of energy.
According to the adaptive inactivity theory of sleep all species have a adopted tendency to sleep at the time period when waking is dangerous for the species.
It says that sleeping is necessary and it is a strategy of the body to conserve energy in order to stay energetic and healthy.
