Natural Selection - A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits., Evolution - Change in a kind of organism over time; process by which modern organisms have descended from ancient organisms., Speciation - A process typically caused by the genetic isolation from a main population resulting in a new genetically distinct species., Selective Breeding - Selection by humans for breeding of useful traits from the natural variation among different organisms (AKA artificial selection), Homologus Structures - Structures that have different forms in different organisms but develop from the same general structure. Supports idea of common ancestor., Vestigial Structures - A structure that is present in an organism but no longer serves its original purpose (ex: whale pelvis bone), Survival of the Fittest - Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called natural selection, Adaptation - A characteristic that improves an individual's ability to survive and reproduce in a particular environment., Embryology - Similarity in the appearance of embryos from different animal species that supports idea of common ancestor., Camoflague - Many animals have evolved to exhibit some form of camouflage, which is an adaptation that allows animals to blend in with certain aspects of their environment., Extinction - A term that typically describes a species that no longer has any known living individuals., Analogus Structures - Similar function but different structure - does not show common ancestry - Ex: butterfly wing and bat wing),

Evolution 8th Grade

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