❓ 質問 According to the passage, what is a major limitation of the keystone species concept as initially proposed?
- A. A) It failed to account for the role of predators in controlling prey populations.
- B. B) It assumed that species roles are consistent across different environmental conditions.
- C. C) It overlooked the importance of species abundance in determining ecological impact.
- D. D) It only applied to marine ecosystems and could not be used in terrestrial habitats.