Critical Reasoning
试题详情
题目：
A fossil recently discovered in Marlandia, a chain of islands, proves that a present-day reptile indigenous to Marlandia is descended from an ancient reptile species that lived on the islands millions of years ago. The finding is surprising since the ancestral species was thought to have become extinct when Marlandia was submerged in a global sea-level rise twenty-five million years ago. Based on the new discovery, many scientists have concluded that the sea-level rise in question left at least part of Marlandia unsubmerged.
Which of the following would, if true, provide the most additional support for the scientists' conclusion?
选项:
A、Reptiles in Marlandia have adapted to many environmental changes since the sea-level rise.
B、Marlandia separated from a much larger landmass about eighty million years ago.
C、No fossils that prove the relationship between the present-day species and the ancestral species have been found anywhere other than Marlandia.
D、The present-day reptiles are able to thrive on very tiny Marlandia islands.
E、The ancestral reptiles could not have survived long at sea.
答案:
E
提问：
请教老师，这道题我选的C，我觉得C反驳了 “祖先可能不在Marlandia 繁衍了后代”，意思就是祖先没跑到别的地方去，就是在M这个地方有了后代，我觉得这个也可以说明祖先在M这个地方没都extinct。谢谢老师解答~
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