Examlex
What is the principle that helps geologists determine the age of rocks that are separated by distance?
Electroencephalograph (EEG)
A medical test used to measure the electrical activity of the brain, often used in the diagnosis of neurological conditions.
REM Sleep
Rapid Eye Movement Sleep, a unique phase of sleep characterized by rapid movement of the eyes, increased brain activity, and vivid dreams.
Amplitude
The extent of a vibratory movement, measured from the position of equilibrium to the highest point of the wave, indicating the strength or intensity of a wave phenomenon.
Voluntary Muscle Activity
Muscle movements that are consciously controlled by the brain, typically involving the skeletal muscles.
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