Examlex
Given are the first three terms of a sequence that is geometric. Find a1 and r.
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Peripheral Nervous System
The part of the nervous system that consists of nerves and ganglia outside of the brain and spinal cord, responsible for connecting the central nervous system (CNS) to limbs and organs.
Central Nervous System
The complex of nerve tissues that controls the activities of the body, comprising the brain and spinal cord.
Endocrine System
A network of glands in the body that secretes hormones directly into the bloodstream, regulating various bodily functions.
Hippocampus
A region of the brain that is associated with memory formation, spatial navigation, and emotional regulation.
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