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Biology vocab

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Term
Definition
Evolution   Change in a kind of organism over the process by which modern organisms have descended from ancient organisms  
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Theory   Well- tested explanation that unifies a broad range of observations  
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Fossil   Preserved remains or evidence of an ancient organism  
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Natural selection   Process by which individuals that are better suited to their environment t and reproduce successfully; also called the survival of the fittest  
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Artificial selection   Selection by humans for breeding of useful traits from the natural variation among different organisms  
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Fitness   Ability of an organism to survive and reproduce in its environment  
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Adaptation   Inherited characteristics that increases an organisms chance of survival  
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Survival of the fittest   Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called natural selection  
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Homologous structure   Structured that have different mature forms in different organisms but develop from the same embryonic tissues  
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Common descent   Principle that all living things have a common ancestor  
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