I am watching my friend sleep. If I want them to be able to tell me about their dreams I should wake them during:

Select one:

a. N1

b. N2

c. N3

d. REM

20- _______ is defined as persistent difficulty falling or staying asleep.

Select one:

a. insomnia

b. bruxism

c. apnea

d. narcolepsy

21- Intelligence is normally distributed in the population, this means that:

Select one:

a. most people have extremely high intelligence

b. most people are average in terms of intelligence

c. most people have extremely low intelligence

d. everyone in the population has approximately the same level of intelligence

Answer rating: 100% (QA)

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