PSYC 2130 Chapter Notes - Chapter 9: Twin, Reuptake, Complications Of Pregnancy

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Sheldon found a relationship between body types and temperament: endomorphy (plumb) and viscretonia. Sociable, fun-loving, love of food, tolerant, even-tempered, good humoured, relaxed, with a love of comfort, and has a need for affection: mesmorphy(muscular) somatotonia. Adventurous, courageous, indifferent to what others think or want, Assertive/bold, zest for physical activity, competitive, with a desire for power/dominance, and a love of risk/chance: ectomorphy (frail) and cerebrotonia. Theory of natural selection genetic material responsiblie for deviation will survive and be passed on to the next generation. Stabilizing selection is a type of natural selection in which genetic diversity decreases and the population mean stabilizes on a particular trait value. Human nervous system: cns brain and spinal cord, pns (peripherial ns) Autonomic nervous system sends and receives information from the heart and other orgamns. Sympathetic nervous system fight or flight. Somatic nervous system voluntary movements: the entire nervous system is composed of two cells: neurons and glial.

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