what is the mean of evolution
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In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. Evolution relies on there being genetic variation? in a population which affects the physical characteristics (phenotype) of an organism
Chemical evolution may refer to: Abiogenesis, the transition from nonliving elements to living systems. Astrochemistry, the study of the abundance and reactions of molecules in the universe, and their interaction with radiation
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