The nervous and endocrine systems deal primarily with ______ stimuli. A. intrinsic B. extrinsic C. both a and b D. none of the above
Biology · Middle School · Thu Feb 04 2021
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C. both a and b
The nervous and endocrine systems are both designed to respond to intrinsic and extrinsic stimuli. Intrinsic stimuli are those that come from within the body, such as a drop in blood glucose levels, which might trigger a response to eat more or release stored glucose. Extrinsic stimuli are from the external environment, such as temperature changes that make a person shiver or sweat. Both systems work together to maintain homeostasis, which is the stable and balanced internal environment of the body