AP PSYCHOLOGY

Detailed explanation-1: -Explain. Hunger and thirst are both influenced by internal stimuli, or the stimulus that came inside our body. Once an internal stimulus is felt, it would cause a change in behavior. For an instance, if a lioness feels hungry, that would drive this animal to look for a food, particularly for a prey.

Detailed explanation-2: -Ghrelin, a hormone produced by the stomach, is an appetite stimulant.

Detailed explanation-3: -Stimulus is of two types, external and internal. Smell, sound, etc., are examples of external stimuli and hunger, thirst, etc., are examples of internal stimuli.

Detailed explanation-4: -Internal stimuli are internal factors that cause an organism to respond in order to maintain homeostasis. In animals, there are nerve receptors inside the body that will pick up on changes that occur, such as oxygen and carbon dioxide levels, blood sugar levels, water levels, blood pH, and core body temperature.

Detailed explanation-5: -Stimuli can be external or internal. An example of external stimuli is your body responding to a medicine. An example of internal stimuli is your vital signs changing due to a change in the body.