Rem rebound involves the a) tendency for rem sleep periods to become increasingly longer and more frequent as a normal night of sleep progresses. b) increase in rem sleep that characteristically follows intense learning episodes or stressful daytime experiences. c) unusual symptoms of tiredness and irritability that follow periods of rem sleep deprivation. d) tendency for rem sleep to increase following rem sleep deprivation.

i think the answer is D) tendency for REM sleep to increase following REM sleep deprivation.

Explanation:REM rebound is the lengthening and increasing frequency and depth of rapid eye movement (REM) sleep which occurs after periods of sleep deprivation.

answer:

science is the study of the nature and behavior of natural things and the knowledge that we obtain about them. a science is a particular branch of science such as physics, chemistry, or biology. physics is the best example of a science which has developed strong, abstract theories.

pseudoscience is a collection of beliefs or practices mistakenly regarded as being based on scientific method.

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answer:

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explanation: