Which of the following is a key component of homeostasis in the human body?

• A. The digestion of carbohydrates
• B. The process of photosynthesis
• C. The production of red blood cells
• D. The regulation of body temperature

Answer: (D)

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. It involves various physiological processes that keep conditions within a narrow range necessary for survival.
2. Identify key components of homeostasis: Key components include regulation of body temperature, blood pressure, pH levels, and electrolyte balance. These processes are crucial for maintaining the body's equilibrium.
3. Evaluate the options given: Consider each option in the context of homeostasis. The digestion of carbohydrates is a metabolic process, photosynthesis is not applicable to humans, and the production of red blood cells is part of hematopoiesis, which contributes to oxygen transport but is not directly a homeostatic process.
4. Focus on the regulation of body temperature: This is a classic example of homeostasis. The body uses mechanisms such as sweating, shivering, and altering blood flow to maintain a stable temperature, which is vital for enzyme function and overall metabolic processes.
5. Conclude with the correct answer: Based on the understanding of homeostasis, the regulation of body temperature is indeed a key component, as it directly involves maintaining the internal environment within optimal limits.