❓ Câu hỏi According to the passage, what was the main result of Robert Paine's experiment with the starfish Pisaster ochraceus?
- A. A) The removal of the starfish led to an increase in overall biodiversity.
- B. B) The mussel Mytilus californianus became dominant and reduced species diversity.
- C. C) The starfish was found to be an apex predator with little effect on other species.
- D. D) The experiment proved that keystone species are always rare or uncommon.