Mammals Experience Two Distinct Types of Sleep

question 132

Multiple Choice

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

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Definitions:

Excessively

Doing or having something in a way that is beyond what is normal, necessary, or reasonable; overly or to an undue degree.

Percent

A mathematical term used to describe a portion of 100, denoting a fraction of a whole in terms of equal parts per hundred.

Social Smile

A smile evoked by a human face, normally first evident in infants about 6 weeks after birth.

Separation Anxiety

A disorder characterized by excessive fear or anxiety about separation from home or an attachment figure.