Compared to the earlier part,the later part of a night's sleep ____.
A)includes a larger percentage of REM sleep
B)includes a lower percentage of REM sleep
C)is characterized by declining body temperature
D)has more slow wave sleep

Question

Compared to the earlier part,the later part of a night's sleep ____.​
A)includes a larger percentage of REM sleep
B)​includes a lower percentage of REM sleep
C)​is characterized by declining body temperature
D)has more slow wave sleep

Quizplus · Accepted Answer

As the night progresses, the proportion of REM (Rapid Eye Movement) sleep increases, while slow-wave sleep (deep sleep) decreases.

Compared to the Earlier Part,the Later Part of a Night's