During sleep, periods of rapid eye movement (REM) alternate with non-REM sleep in a cycle that recurs about every:
a. 30 minutes.
b. 50 minutes.
c. 60 minutes.
d. 90 minutes.
D
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There is a famous collection of movies about a trio of kids who are in the same "year" at school. You may have heard of them., but just in case you haven't, they are the Harry Potter films. Of the three characters,
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a. scaffolding b. zone of proximal development c. area of competence d. structuring
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a. authenticity b. originality c. individuality d. accuracy