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Sookdeo-Evolution
Evolution
Question | Answer |
---|---|
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 |