Cracking the toefl ibt 2008 part 21

Chia sẻ: Tran Anh Phuong | Ngày: | Loại File: PDF | Số trang:10

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Cracking the toefl ibt 2008 part 21

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01 course, not everyone agrees that the program's creations are aiive. One difficulty is that biologists do not even agree on the definition of life. The diversity of life on Earth constantly surprises scientists, and there are simply too many characteristics and qualities to provide one simple definition of life.

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