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Natural selection is rhe sirvival of the fittest. The fittest for the environment. If there is a sudden change in the environment say for example, flood or forest fire, etc. , species that once thrived may no longer have what it takes to survive in the changed environment. Other species might find it easier to thrive in the changed environment.
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Here's my answer i hope this helps
The Democratic Republicans rejected the establishment of a National Bank of the United States because they saw it as a way of appropiating the power that belonged to each state. Another reason was that they also declared that it would be closely related to the rich people and not to the working class.
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Air polution to breath :)
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