Question

question 4 of 20
stages 3 and 4 are often referred to as _____ sleep.
○ rem
○ slow - wave
○ fast - wave
○ paralysis

Explanation:

In sleep cycle stages, stages 3 and 4 are characterized by slow brain waves (delta waves), so they are called slow - wave sleep. REM sleep is a different stage with rapid eye movement, fast - wave is not the term for these stages, and paralysis is associated with REM sleep's muscle atonia, not stages 3 - 4.

Answer:

B. slow - wave