Social Studies, 13.11.2019 01:31, martymangaroo

Which statement concerning the sympathetic and parasympathetic branches of the nervous system is true?
a. both nervous systems stimulate the activities of many organs.
b. both nervous systems release norepinephrine.
c. the sympathetic system generally produces increased physical activity, while the parasympathetic system produces a decrease in physical activity.
d. the sympathetic system controls external stimuli, while the parasympathetic system controls internal stimuli.

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Which statement concerning the sympathetic and parasympathetic branches of the nervous system is tru...