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Multiple Choice
Which of the following best describes the role of homeostasis in the human body?
A
Maintaining a stable internal environment despite external changes
B
Increasing the body's temperature during exercise
C
Facilitating the digestion of food in the stomach
D
Regulating the body's circadian rhythms
Verified step by step guidance
1
Understand the concept of homeostasis: Homeostasis refers to the body's ability to maintain a stable internal environment despite changes in external conditions. This includes regulating factors such as temperature, pH, and electrolyte balance.
Identify the key components involved in homeostasis: The body uses various systems, including the nervous and endocrine systems, to monitor and adjust physiological processes to maintain balance.
Evaluate each option in the context of homeostasis: Consider how each option relates to maintaining stability in the body's internal environment.
Option analysis: 'Maintaining a stable internal environment despite external changes' directly describes the essence of homeostasis, as it involves keeping internal conditions constant.
Consider the other options: 'Increasing the body's temperature during exercise' is a response to physical activity, not a direct function of homeostasis. 'Facilitating the digestion of food in the stomach' is a digestive process, and 'Regulating the body's circadian rhythms' involves biological clocks, which are related but not the primary function of homeostasis.