Evolution project

2. difference between individuals
6. when no members of the species exist anymore
8. proposed all organisms are born with the desire to become better
9. the process of selecting a few organisms with desired traits to serve as parents for the next generation
10. his theory explains how modern organisms have evolved
12. the theory that species evolve during short periods of rapid change
13. preserved remains of a once living organism

1. A diagram that shows how scientists think different organisms are related
3. A structure that is reduced in size
4. proccess by which individuals are better adapted to their environment are more likely to survive
5. body parts that are similar in related species that have a common ancestor
7. the idea that older more simple fossils are at the bottom and new complex are closer the top
9. theory tested concept that explains a wide range of observations
11. used to determine which of two fossils is older