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Some concepts: Evolution is the the gradual change of an organism over time Natural Selection is when the organisms who are best suited for their environment survive and have offspring while the weaker organisms die off Adaptation is when an organism changes and grows due to a particular situation Reproductive Isolation is when two organisms reproduce differently and therefore can't reproduce with each other Behavioral Isolation is when two organisms have different mating patterns or rituals meaning they can't mate Geographic Isolation is when, due to the geographic conditions, two species cannot mate |