What model of evolutions shows change over a relatively short period of time?

What model of evolutions shows change over a relatively short period of time?
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The theory of punctuated equilibrium. Developed by NilesEldridge and Stephen Jay Gould.
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What terms is used to describe a resource that can be replaced naturally over a relatively short period of time?

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What is evolution that occurs over a short period of time called?

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Any relatively easy way to print, over the internet?

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What is a measurement that shows how the average price of a standard group of goods change over time?

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