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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 |