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Psychology › View

A relatively psychologically active type of sleep when most of a person’s dreaming takes place; voluntary muscles are inhibited, making the person move very little.

A. Rapid Eye Movement (REM) Sleep

B. Non-REM Sleep

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Central and Peripheral Nervous System › View

How does the body prevent damage to the fragile brain and spinal cord?

A. the brain is kept floating in the skull so it can absorb impacts

B. the brain and spinal cord are enclosed in bone (skull and spinal column) to protect it

C. the spinal cord is kept safe by being hidden behind other body organs and muscles

D. The brain isn’t as protected as the spinal cord

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