Evolution by Natural Selection

4. The biggest homology
7. Species that are no longer exist
8. tree Diagram that illustrates the ancestor descendent relationships between taxa
9. This kind of rock is made of sand or mud
10. The type of bird Darwin used to test artificial selection
11. This greek philosopher believed everything was perfectly created by god
12. bumps An example of a vestigial trait (also the name of book series)
14. Similarity that exists in species descended from a common ancestor
15. Theory of evolution by natural selection is often described as
16. These features are trait in fossil species that are intermediate between ancestral and derived species
18. Are traces of organisms that lived in the past

1. Scientific theories are often comprised of two components process and
2. Heritable trait that increases an individual's fitness
3. Reproduction as a result of heritable variation
5. Occurs when an individual's phenotype changes in response to changes in the environment
6. An individuals ability to produce surviving offspring
13. This tike is divided into eons, eras, periods, and epochs
17. Darwin has how many Postulates