Examlex
Archaic state formation did not occur anywhere until roughly AD 500; archaic states then spread rapidly from their birthplace in the Near East throughout much of the world.
Hypothalamus
A region of the brain below the thalamus that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems.
Cerebellum
A major feature of the hindbrain of all vertebrates responsible for motor control, and possibly also some cognitive functions.
Acquired Reflexes
Learned reflex actions that develop as a result of repeated exposure to a stimulus, differing from innate reflexes present at birth.
Biological Clock
An internal mechanism in organisms that controls the timing of various biological functions, such as sleep-wake cycles and hormonal changes.
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