Final answer:
Appetite is controlled by the hunger center in the hypothalamus of the brain, which regulates the body's essential functions and maintains homeostasis through signals to the endocrine system.
Step-by-step explanation:
Appetite is controlled by the hunger center in the hypothalamus of the brain. The hypothalamus is an essential part of the brain for regulating homeostasis, which includes the crucial functions of food and water intake. It sends signals to the pituitary gland, thereby controlling the endocrine system, and helps to maintain body temperature, energy expenditure, and circadian rhythms. Neurons within the hypothalamus integrate various hunger and satiety signals that ultimately determine whether we engage in feeding behavior. Appetite is controlled by the hunger center in the hypothalamus of the brain. The hypothalamus is an essential part of the brain for regulating homeostasis.