해당 지문 단락은 아래와 같고 답은 A입니다.. 답이 전혀 안보여서 D를 찍었는데 역시나 틀렸네요. 답 A의 slow란 말이 전 아직 와닿지 않는데 어떻게 풀이를 해야할까요?
According to paragraph 2, which of the following principles of ecosystems can be learned by studying a pond?
- Ecosystem properties change more slowly than individuals in the system.
- The stability of an ecosystem tends to change as individuals are replaced.
- Individual organisms are stable from one year to the next.
- A change in the members of an organism does not affect an ecosystem’s properties.