What is the stimulus which prompts one to eat in response to internal physical cues?

Question

Quizplus · Accepted Answer

Hunger is the physiological response to a lack of food, prompting the body to seek out and consume food to maintain proper functioning. Appetite, while related, is more often influenced by external cues such as smell or sight of food, and may not necessarily indicate a physiological need for food. Behavioral modification and satiety are not the direct prompts for eating in response to internal physical cues.

What Is the Stimulus Which Prompts One to Eat in Response