What is the definition of evolution

the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

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Evolution is a process of continuous branching and diversification from common trunks. This pattern of irreversible separation gives life's history its basic directionality.

Explanation:

hello,

  i would that it was because no matter how hard people worked everyone would be paid the same, witch it was a that the russian to rule.

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do you have a list of sources to choose from?