Natural Selection - Charles Darwin's Theory that well adapted organisms survive and reproduce, Evolution - Slow change over time, Population - All members of the same species in one area, Speciation - When a species evolves into a new species, Naturalist - A scientist who studies living organisms, Geographic Isolation - When a new species evolves when areas become separated, Mutation - A random alteration of the DNA or gene code, Gene Pools - All the coded genes included in a population , fossils - Organisms preserved in sedimentary rock, variation - The many different traits that occur in the offspring, Acquired characteristics - Lamarck's Theory that a trait can be had in a single generation, Gradualism - The theory that evolution occurs slowly over time, Punctuated Equillibrium - The Theory that evolution occurs abruptly over a short period of time, Migration - When a member of a population travels away from the population, Reproductive Isolation - A condition where members of a population can not mate,

Evolution

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