Amphibians are of great importance throughout the world. These relatively small animals are crucial
members of the food chain, and their survival is vital to the overall health of ecosystems. Their large
appetites help keep insect populations in check, and they serve as prey for a number of larger predators. Consequently, the loss of amphibians like frogs and salamanders is perceived as a critical threat to
global biodiversity. In addition, their ability to regenerate limbs is of great interest in the study of call
function and genetics.
Q. Which of the following is an example of the importance of amphibians?
( A ) Their presence in most of the world's ecosystems
( B ) Their role as specimens for scientific research
답은 B 였는데 왜 A 는 답이 될 수 없는지 모르겠습니다!
혹시 생태계에서 amphibians의 역할이 중요하긴 하지만 그렇다고 most of the world's ecosystem은 아니라서 그럴까요? 예를 들면 수중 생태계에서의 amphibians의 역할은 그닥 중요하지 않을 수도 있으니 A는 지문에 나오지 않은 내용이어서 틀린 건가요?