How is artificial selection different from natural selection?

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How is artificial selection different from natural selection? 

Artificial selection is the only kind of selection that can occur in a laboratory. 

Artificial selection is selection by humans rather than the environment. 

Artificial selection changes traits but not genes. 

Artificial selection can occur over one or two generations as opposed to many generations.

Jul 1st, 2015

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Ans:

B. Artificial selection is selection by humans rather than the environment.

We human can select to breed dogs and wolves together to make a better species. We breed grain and grasses together to create a better yields.  We bred cattle, sheeps, and horses to be stronger.  Artificial selection is based on what the person desire the traits to be; it is not always for a better fit. We human are responsible for breeding the traits we want. This is artificial selection. 

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Jul 1st, 2015

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