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Piaget viewed the child as a
Nervous System
Organ system of humans that includes the brain, spinal cord, sense organs (eyes, ears, etc.), and associated nerves. Receives, integrates, and stores sensory input; coordinates activity of other organ systems.
Endocrine System
Organ system involved in the coordination of body activities; uses hormones as chemical signals secreted into the bloodstream.
Altruism
Social interaction that has the potential to decrease the lifetime reproductive success of the member exhibiting the behavior.
Dominance Hierarchy
A social structure within a group of animals where individuals are ranked according to their level of dominance or power.
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