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Genetic changes, occurring over long periods of time, are central to evolution and an important aspect of biology. |
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Evolution is an important concern in biology which deals with genetic change over long periods of time. |
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Evolution, which is a fundamental concept of biology, can be defined as genetic changes occurring over time. |
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Evolution, or genetic change over time, is basic to all biological studies. |
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Biology is largely concerned with evolution and genetic change over long periods of time. |