Answer:
<em><u>It </u></em><em><u>is </u></em><em><u>the </u></em><em><u>statical </u></em><em><u>study </u></em><em><u>of </u></em><em><u>human </u></em><em><u>population</u></em>
One of the signs that sleep is necessary is that all living creatures are harmed by lack of sleep. Correct answer: A Sleep serves important evolutionary functions for all animals, because sleep helps animals consolidate memories and learn. Animals sleep according to how much they eat – animals that eat food with a lower caloric density sleep less than others. However, lack of sleep and if the deprivation is long enough it can kill animals.
<span>The choices can be found elsewhere and as follows:
</span><span>A) REM; Stage 1
B) Stage 1; REM
C) REM; Stage 2
D) Stage 2; REM
E) REM; Stage 4
</span><span>
I believe the correct answer is option E. Paradoxical sleep is to slow-wave sleep as REM sleep is to stage 4 sleep. Hope this answers the question.</span>
There are critical periods for a child's brain development.
