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fossil imprint of once living organism
fossil record all fossils that have been discovered
organism any living thing
extinction all members of a species have died
adaptation an inherited trait that helps an organism to survive and reproduce
variation natural differences within a species
natural selection organisms inherit advantageous traits to help reproduce more successfully
evolution process in which populations gradually change over time
artificial selection traits that can change and spread through populations, usually humans select plants and animals for breeding
endangered species decrease in the number of species where the species is at risk for extinction
Created by: dsookdeo