WHAT IS EVOLUTION?

 
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Evolution is the theory of how living things (organisms) change over time. Evolution helps to explain why an animal, human, and plant looks the way it does and acts the way it does; it gives an explanation of the history of life and how modern organisms have descended from ancient ancestors.

Evolution is responsible for both the remarkable similarities we see across all life and the amazing diversity of that life — but exactly how does it work?

There are four mechanisms that make evolution work: mutation, gene flow, genetic drift and natural selection. But before we look at these mechanisms, lets firstly have a quick Biology pit-stop.