Examlex
Which of the following about Social Security is true?
Sleep Spindles
Sudden bursts of oscillatory brain activity visible on an EEG that occur during stage 2 of sleep, believed to play a role in learning and memory.
Stage 4
In various contexts, this could represent a specific phase in a process or development path, such as the fourth stage of sleep characterized by deep sleep or another sequential phase depending on the context.
REM
Rapid Eye Movement, a sleep phase characterized by eye movement, vivid dreams, and increased brain activity.
Evolutionary Bases
Fundamental principles or underlying grounds for traits or behaviors that have been shaped by natural selection.
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