Evolution

4. Scientists compare organisms' DNA to support the theory that all species share a common ____________.
6. The slow process that results in new species.
8. Naturalist who traveled to the Galapagos Islands and created the theory of evolution.
9. Process by which organisms that are better adapted survive and reproduce more successfully than organisms that are less well adapted.
11. The sequence of life's history as indicated by fossils.
13. Process in which humans select which plants or animals to reproduce based on certain desired traits.
14. When there are no more organisms of a certain species.

1. The difference in DNA sequences between individuals in a species.
2. The remains or an imprint of an organism An individual animal, plant, or single-celled life form.
3. Prokaryotes such as cyanobacteria dominated the ___________ time.
5. When an animal produces a large amount of offspring.
7. The species Charles Darwin studied in the Galapagos Island that led to the theory of evolution.
10. A characteristic that improves an organism's ability to survive.
12. The type of rock in which most fossils are found in.
15. Characteristic that can be passed from parent to offspring through genes.