Mammals experience two distinct types of sleep.A sleeping dog that starts to make noises and appears to be trying to chase something while remaining asleep is likely transitioning from _______ to _______.
A) wakefulness; slow-wave sleep
B) REM sleep; wakefulness
C) slow-wave sleep; high-amplitude sleep
D) REM sleep; slow-wave sleep
E) slow-wave sleep; REM sleep

Question

Quizplus · Accepted Answer

Mammals experience REM (Rapid Eye Movement) and slow-wave sleep. The scenario described is indicative of a dog transitioning from slow-wave sleep to REM sleep, during which dreams and more active brain patterns occur.

Mammals Experience Two Distinct Types of Sleep