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Life
705
Question | Answer |
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Adaptation | the process or state of changing to fit a new environment or different conditions, or the resulting change |
Evolution | the natural or artificially induced process by which new and different organisms develop as a result of changes in genetic material |
Fossil | the remains of an animal or plant preserved from an earlier era inside a rock or other geologic deposit, often as an impression or in a petrified state |
Fossil Record | A historical sequence of life indicated by fossils found in layers of the earth's crust |
Generation Time | the period of time that it takes for people, animals, or plants to grow up and produce their own offspring, in humans held to be between 30 and 35 years |
Mutation | a random change in a gene or chromosome resulting in a new trait or characteristic that can be inherited. Mutation can be a source of beneficial genetic variation, or it can be neutral or harmful in effect. |
Natural Selection | the process, according to Darwin, by which organisms best suited to survival in their environment achieve greater reproductive success, thereby passing advantageous genetic characteristics on to future generations. |
Selective Breeding | The breeding of organisms that have a certain desirable trait |
Speciation | the evolutionary formation of new biological species, usually by one species that divides into two or more species that are genetically unique |
Species | a subdivision of a genus considered as a basic biological classification and containing individuals that resemble one another and may interbreed |
Trait | a quality or characteristic that is genetically determined |
Vestigial Structure | organs or structures remaining or surviving in a degenerate, atrophied, or imperfect condition or form. This is the accepted biological definition used in the theory of evolution. |