❓ 题目 According to the passage, what was the main finding of Robert Paine’s experiment with Pisaster ochraceus?
- A. A. Removing the starfish caused a decrease in mussel populations.
- B. B. The starfish’s presence increased overall species diversity by controlling mussels.
- C. C. Mussels were the dominant species in the intertidal zone regardless of starfish.
- D. D. The starfish had little effect on the community because of its low biomass.