다음 글의 밑줄 친 부분 중 문맥상 낱말의 쓰임이 적절하지 않은 것은?… | [법원직 9급 영어] 17년 1회차 기출문제 상세 페이지

다음 글의 밑줄 친 부분 중 문맥상 낱말의 쓰임이 적절하지 않은 것은? 
All living things share basic characteristics. These common threads can be explained by descent from a common ancestor. Many kinds of evidence suggest that life began with ①single cells and that the present rainbow of organisms evolved from this common origin over hundreds of millions of years. In other words, the process of ②evolution explains the unity we observe in living things. The other striking thing about life on earth is its diversity. The same coral reef contains a multitude of animal species. Yet, each body type suits a ③particular lifestyle. The process of evolution, which involves changes in the genetic material and then physical modifications suited to different environments, explains the ④unity we observe in living things.

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