Biology

The correct answer is D.Homeostasis.

Homeostasis refers to the process by which living organisms regulate and maintain a stable internal environment, despite changes in external conditions. This includes regulating body temperature, pH, water balance, and other vital conditions.

1.Stable body temperature: The body maintains a constant temperature to ensure proper functioning of enzymes and metabolic processes.

2.Fever: A fever is part of the body's defense mechanism to fight infection, but it is also a response to maintaining homeostasis in the presence of an infection.

3.Vomiting: This can be a response to maintain balance, such as removing toxins or ...