Which statement best describes how a negative feedback system works?

• A. It initiates a response that opposes the initial change in condition.
• B. It reduces the effect of a stimulus to maintain homeostasis.
• C. It amplifies the effect of a stimulus to achieve a desired outcome.
• D. It maintains a constant level of a stimulus regardless of changes.

Answer: (B)

Verified step by step guidance

1. Understand the concept of homeostasis: Homeostasis is the body's ability to maintain a stable internal environment despite changes in external conditions.
2. Identify the role of negative feedback: Negative feedback mechanisms are processes that counteract changes in the body to maintain homeostasis.
3. Analyze the options: Consider how each statement aligns with the concept of negative feedback and homeostasis.
4. Focus on the correct description: Negative feedback systems work by initiating a response that opposes or reduces the effect of the initial stimulus.
5. Conclude with the correct understanding: The statement 'It reduces the effect of a stimulus to maintain homeostasis' best describes how a negative feedback system works.