What Is a Characteristic of REM Sleep

question 11

Multiple Choice

What is a characteristic of REM sleep?

• A) During the REM stage, delta waves are emitted.
• B) Most people spend almost all of their sleep time in the REM stage.
• C) The preoptic area of the hypothalamus stimulates REM sleep.
• D) During REM sleep, blood flow to the frontal lobe increases.
• E) Brain waves change to a desynchronized pattern during REM sleep.

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Definitions:

Minerals

Naturally occurring inorganic substances with a definite chemical composition and crystalline structure, forming the building blocks of rocks.

Scratch Test

A method used to determine the relative hardness of minerals by scratching them with an object of known hardness or with other minerals.

Effervescence

The potential of a mineral to have a vigorous bubbling reaction when a drop of dilute hydrochloric acid (HCl) is placed on it.

Magnetism

A physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.