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mcleod evolution

seventh grade evolution

TermDefinition
evolution the process by which populations accumulate inherited changes over time
natural selection the process by which organisms with favorable traits survive and reproduce at a higher rate than organisms without the favorable trait
adaptation a characteristic that helps an organism survive in its environment
mimicry a superficial resemblance of one organism to another or to natural objects among which it lives that secures it a selective advantage (as protection from a predator)
camouflage organism is indiscernible from the surrounding environment through deception
selective breeding the breeding of organisms that have a certain desired trait
species a group of organisms that can mate with one another to produce fertile offspring
common ancestor ancestral organisms shared by two or more descendent lineages
speciation the process by which two population of the same species become so different that they can no longer be interbred
theory statements or models that have been tested and confirmed many times
Theory of Evolution the process where organisms have changed over time through the process of natural selection
fossils the remains or traces of an organism that lived in the past that have been preserved in rock
relative dating dating fossils based on their location in the earth
absolute dating determines the age of the fossil in year by using the method of carbon dating; gives a number
homologous structures same structure, different function
vestigial organs seemingly functionless parts; example ostrich wings
Created by: f mcleod
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