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1
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the process by which a species evolves into two or more descendant or different forms
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2
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species compete for resources in order to survive
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3
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the hypothesis that evolutionary development is marked by isolated episodes of rapid speciation between long periods of little or no change
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4
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slow reform rather than sudden change or revolution
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5
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the diversification of a group of organisms into forms filling different ecological niches
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6
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where several unrelated species have evolved to share a similar characteristic
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7
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differences among individuals of a species
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