Fossil, remains of ancient organisms, Evolution, process of change over time, Occurs to populations NOT INDIVIDUALS, Charles Darwin, one of the first scientists to publish his ideas about evolution in a book, “The Origin of Species: By Means of Natural Selection”., Natural Selection, when nature works for or against an organism depending on its adaptations, Survival of the fittest, A quick and easy way of explaining natural selection, Fitness, Organism’s reproductive success, Homologous Structure, Same structure, different function. EX: Whale flipper and human arm, Analogous Structure, Different structure, same function. EX: Bird wing and butterfly wing, Vestigial Structure, Structures that no longer serve a purpose EX: Whale hips, Common ancestry, the idea that all organisms now alive on Earth and all present day fossils trace back to one or a few “original species.”, Adaptations, inherited characteristic which increases chances of survival, Population, all the organisms of the same species living within a particular area, Gene Frequency, how often a gene occurs within a population., Gene Flow, when organisms move from one population to another, bringing their unique genes to the gene pool, Genetic Drift, when gene frequency in the gene pool of a population changes due to chance, Mutations, changes in genetic information that can happen randomly due to chance or environmental factors.

Evolution Vocab

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