Evidence of Evolution

5. An example of an analogous structure.
7. Structures that have lost their use through evolution.
11. The study of how organisms develop.
12. The fossils and the order they appear in rock.
13. How life changes over time.
15. Fossils that have traits that are intermediate between the ancient and more modern forms of an organism.
17. The process that lets evolution happen.
19. The study of the similarities and differences in the structures of different species.

1. Scientists who study fossils to learn about life in the past.
2. When all members of a species die.
3. Structures that are similar in unrelated organisms.
4. The preserved remains of animals, plants, and other organisms from the distant past.
6. The scientist who developed the theory of evolution.
8. Structures that have a common function and suggest common ancestry.
9. The creation of a new species.
10. An example of a homologous structure in mammals.
14. An example of a vestigial structure
16. The structure of organisms.
18. An animal or plant in its earliest stages of development.