Which part of the body is the control center for the nervous system?

b - the respond is innate and varies over time.

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what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

they fuse to form they have half as many chromosomes as a somatic cell of the same individual. b