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Chapter 7 Vocabulary

Practice for Chapter 7 vocabulary.

adaptationhereditary characteristic that helps and organism survive in its environment
speciesgroup of organisms that can mate with one another and produce fertile offspring
evolutionprocess by which populations accumulate inherited changes over time
fossilsolidified remains or imprints of once living organisms
fossil recordhistorical sequence of life indicated by fossils
vestigial structureremnant of a once useful anatomical structure
traitdistinguishing qualities that can be passed from one generation to another
selective breedingbreeding of organisms aht have a certain desired trait
natural selectionprocess by which organisms with favorable traits survive
generation timether period between the birth of one generation and the birth of the next generation
speciationthe process by which two populations of the same species become so different they can no longer interbreed
mutationchanges in the bases of an organism's DNA

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