❓ คำถาม According to paragraph 2, which of the following is a criticism of the keystone species concept?
- A. A. It is rarely applied in conservation biology.
- B. B. It often requires extensive experimental data that are not always available.
- C. C. It overemphasizes the role of predators over herbivores.
- D. D. It assumes that keystone species are equally important in all ecosystems.