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Evolution is the change in the inherited characteristics of biological population over succesive generations

Evolutionary process give rise to diversity at every level of biological organisation,including species,individual organisms and molecules such as D.N.A and proteins.

First ancestor lived over 3.8 billion years

Charles Darwin was the first to formulate a scientific argument for the theory of evolution means of natural selection is a process inferred from three facts

1.more offsprings are produced
than can possibly survive

2.traits vary among individuals,leading to different means of survival
and reproduction

3.traits differance are inheritable.

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