An example of negative feedback is?

In the context of physiological regulation, negative feedback is a process where the system responds in a manner that counteracts a change, thereby maintaining homeostasis.

Body temperature declining after sweating serves as a prime example of negative feedback. When the body overheats during exercise, sweating occurs as a cooling mechanism. As sweat evaporates from the skin, body temperature drops, which counteracts the initial increase in temperature.

Increasing blood flow to cool the body is also an essential component of this feedback mechanism. The body directs more blood to the skin's surface, enhancing heat dissipation and helping to lower overall body temperature when it is elevated.

While it may seem that increasing body temperature during exercise reflects a positive feedback loop, it is merely a part of the overall process that activates negative feedback mechanisms, subsequently leading to cooling.

Collectively, these responses—declining body temperature after sweating, increased blood flow for cooling, and mechanisms of heat regulation during exercise—illustrate how the body utilizes negative feedback systems to maintain a stable and optimal internal environment. Thus, all the mentioned options collectively exemplify the negative feedback process in response to changes in body temperature.