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Science Ch3 Gr4
Science Ch3, Grade 4, Adaptations
Question | Answer |
---|---|
basic needs | the things that a living thing needs to survive. |
adaptation | a body part or behavior that helps a living thing survive. |
natural selection | the process in which the best adapted organisms survive the best |
instinct | a behavior that an animal begins life with |
hibernation | an inactive state in which normal body activities slow |
migration | the movement of animals from one region to another and back |
learned behavior | a behavior that an animal does not begin life with |
fossil | what is left of a plant or animal that lived long ago |
extinction | a kind of plant or animal that had died out |