Jenny is running for more than an hour on a pleasant Sunny morning her body is sweating to maintain homeostasis which is caused by the action of

Homeostasis is defined as the maintenance of the stable conditions necessary for survival. Examples of homeostasis include thermoregulation, osmoregulation, and baroreflex in blood pressure.

Thermoregulation is the mechanism through which the human body maintains the internal body temperature tightly independent of the external temperatures.

Sweating is one of the mechanisms of thermoregulation, which is used by Jenny. Sweating is a process in which the human body loses heat in the form of water vapor or liquid. This water vapor is evaporated that helps in controlling the temperature of the body.

The central nervous system has the center for thermoregulation, situated in the hypothalamus. The system then sends signals to maintain homeostasis by the required mechanism.

Sweating is also a type of homeostasis mechanism required to maintain body temperature.

Therefore, Jenny is sweating as a response to the homeostasis mechanism, which maintains the internal temperature.

To know more about homeostasis and thermoregulation, refer to the following link:

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The sweat that Jenny produces while she is running, to maintain homeostasis is caused by the action of a control center, specifically sweat control center.

Explanation:

A natural response of the body to prolonged physical exercise is the increase in body temperature, a stimulus that activates the sweating process.  Through sweating, the body loses heat through the evaporation of the liquid that covers the skin, being a mechanism to control body temperature.

As part of thermoregulation, the sweat control center —located in the preoptic area, just in front of the hypothalamus— receives the stimulus caused by the increase in temperature and sends a response to the sweat glands that produce and secrete the sweat.

Sweat is a thermoregulation mechanism, and as such, contributes to the maintenance of homeostasis.