Scarlett has slept terribly the past 3 nights as some neighbors have had visitors in town and been up making noise all night long. When she finally does get to sleep again, it is likely that she will

The correct answer is spend more time in REM sleep

The sleep cycle is a set of phases that start from the moment the person falls asleep and progress and become deeper and deeper, until the body goes into REM sleep.

Normally, REM sleep is the most difficult to achieve, but it is at this stage that the body can really relax and at which the rate of brain renewal is highest.

answer; oxygen to the brain;

i believe the answer is: true

our brain need to reach a certain level of development   before it could interpret and understood sound with high difficulties. to proof this, we just need to pay attention in musical preference between children and adults. it is far less likely that children would enjoy things such as orchestra or rock band as much as adults due to the difference in this ability.