Adaptation - A modification of an organism or its parts that makes it more fit for existence., Mutation - Any change in the DNA sequence of a cell., Evolution - The change in the characteristics of a species over several generations, Natural Selection - Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success, Charles Darwin - The architect of the theory of evolution by natural selection, Positive Adaptation - A moth develops camouflage to blend into a tree., Negative Adaptation - A moth develops a bright neon coloring that alerts predators to its location., Neutral Adaptation - A moth loses a vestigial structure (wing)., Gene Pool - The combination of all the genes (including alleles) present in a reproducing population or species, Genetic Diversity - The total number of genetic characteristics in the genetic makeup of a species, Allele - One of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome., DNA - The molecule that carries genetic information for the development and functioning of an organism.,

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