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OW Evolution
8th grade Science Vocab
Term | Definition |
---|---|
evolution | the theory that states that organisms slowly change over time to fit the environment |
variations | differences within a trait |
adaptations | when a variation helps an organism survive and/or reproduce |
natural selection | nature selects who will be more successful in an environment based upon its adaptaitons |
Charles Darwin | the father of evolution |
mutations | process where spontaneous changes occur in DNA; can be positive, negative, or neutral to survival. |
Fossils | remains or impression from organisms from the past |
extinction | when an organism no longer is on the face of the Earth |
overproduction | as part of natural selection, organisms produce more offspring than are needed for survival |
Galapagos Islands | the place where Darwin traveled to when studying finches bird beaks |
habitat | a place where organisms live |
Law of Superposition | states that the oldest rock layers/fossils are on the bottom and the youngest are on the top |