natural selection - organisms with traits that are best suited for their environment are the most likely to survive and reproduce (high fitness)., fitness - the ability for an organism to survive and reproduce., gene pool - all of the different alleles that an interbreeding population shares., behavioral isolation - members of two populations can interbreed but do not because of differences in courtship or mating rituals., geographic isolation - when geographical barriers keep two populations from interbreeding., temporal isolation - when two or more species reproduce at different times., genetic drift - o any random change in the gene pool of a small population due to chance., founder effect - when migration of a small subgroup establishes the gene pool of a new population., bottleneck effect - n event causes a drastic decrease in a population caused by a natural disaster, like an earthquake or volcano eruption, homologous structures - features that often have different functions but are structurally similar because of common ancestry., vestigial structures - remnants of structures that served important functions in the organism’s ancestors., embryological evidence - Comparing the early stages of development of organisms,

11.10 Theory of Evolution

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