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Principle #1 Genetic Variation: There are two types of frogs one that are brown and one that is blue
Principle #2 Overproduction & the struggle for existence: blue frogs wont survive longer than the brown frogs.
Principle #3 differential survival & Reproduction: the brown frogs have a higher chance at survivng than the blue because the brown frogs camoflauge and the blue frogs dont
Principle #4 changes in the gene pool: the blue frogs cant live in in there because they dont have a good chance of surviving but the brown have more of a chance to survive
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