[Campbell Biology P.59] Which statement accurately describes a key difference between negat... | Practice Question

Which statement accurately describes a key difference between negative and positive feedback mechanisms in biological systems?

  • A: Negative feedback reduces the initial stimulus, while positive feedback amplifies its own production.
  • B: Negative feedback involves hormones, while positive feedback involves nervous impulses.
  • C: Negative feedback is rare, while positive feedback is common.
  • D: Negative feedback always leads to a stable internal environment, while positive feedback always leads to disease.

Explanation

Negative feedback is characterized by a response that reduces the initial stimulus, maintaining stability. Positive feedback, on the other hand, involves a response that amplifies or speeds up its own production. This is clearly stated in the text regarding the definitions and examples of each.