❓ 質問 According to paragraph 3, which of the following is a criticism of the keystone species concept?
- A. A) It focuses too much on species abundance rather than ecological roles.
- B. B) It may overstate the importance of single species in complex ecosystems.
- C. C) It has no practical applications for conservation efforts.
- D. D) It applies only to marine environments such as intertidal zones.