Evolution

4. type of rock that fossils are found in
7. alteration of DNA can be helpful, harmful, or neutral
9. traveled the world observing different species
10. many organisms contain similar sequences (sections) of DNA
11. this structure is body parts that are the same or similar in different species
12. many organisms have similar embryos supporting the idea of common ancestors
13. allow scientists to show how species changed over time
14. all living things must be related and evolved over time due to this

1. rapid evolution that occurs when the mutation of a few genes results in the appearance of a new species over a short time
2. body parts that are useless or left over from a previous ancestor in which they were useful
3. evolution of some species with variations to appear that might have been otherwise hidden
5. matching or extra/left over body parts support the idea of common ancestors
6. change in inherited characteristics over time
8. a continuous series of mutations and variations over time will result in new species