❓ 문제 According to the passage, which of the following is a reason why the keystone species concept is criticized?
- A. A. It overemphasizes the role of abiotic factors in ecosystem structure.
- B. B. It is often subjective and depends on the specific ecological context.
- C. C. It fails to account for the influence of predators on prey populations.
- D. D. It suggests that all species have equal effects on their communities.