Natural Selection, Individuals better suited to their environment survive and reproduce more, Homologous Structures, Body parts with similar structure and origin, but may have different functions, Vestigial Structures, Cells, tissues or organs in an organism that no longer serve a function, Analogous Structures, Similar structures in unrelated organisms, Adaptation, A feature that is favored by the process of natural selection, Artificial Selection, Identification by humans of desirable traits in plants and animals, Fitness, A measurement of an individual’s success at passing its traits on to the next generation, Cladogram, Branching diagram that show evolutionary relationship between organisms, Mutation, A change in the genetic code (DNA) of an organism, Fossil, Preserved evidence of life from the past, Heritable, Able to be passed from parents to offspring, Limited Resources, Things that organisms compete for, like food, shelter, mates, etc., Convergent Evolution, When unrelated organisms evolve similar feature and/or behaviors, Species, Group of organisms that can interbreed and produce fertile offspring, Alleles, Different versions of the same gene, Phenotype, The physical appearance of an organism that results from its genotype, Genotype, The specific set of genes that an organism has

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