❓ 题目 According to the passage, what was the main effect of removing the starfish Pisaster ochraceus from intertidal zones?
- A. A. The mussel population decreased, leading to an increase in species diversity.
- B. B. The mussel population increased, outcompeting other organisms and reducing diversity.
- C. C. The starfish population recovered quickly due to immigration from adjacent areas.
- D. D. The ecosystem became more stable because the dominant competitor was eliminated.