❓ 質問 According to the passage, what is a key reason why an ecosystem may not return to its original state after a disturbance?
- A. A) The disturbance is always too severe to allow any recovery.
- B. B) Feedback loops can push the system into an alternative stable state beyond a threshold.
- C. C) Managers deliberately prevent recovery to maintain invasive species.
- D. D) The original state is never clearly defined by ecologists.