Evolution by Natural Selection

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Across
  1. 4. The biggest homology
  2. 7. Species that are no longer exist
  3. 8. tree Diagram that illustrates the ancestor descendent relationships between taxa
  4. 9. This kind of rock is made of sand or mud
  5. 10. The type of bird Darwin used to test artificial selection
  6. 11. This greek philosopher believed everything was perfectly created by god
  7. 12. bumps An example of a vestigial trait (also the name of book series)
  8. 14. Similarity that exists in species descended from a common ancestor
  9. 15. Theory of evolution by natural selection is often described as
  10. 16. These features are trait in fossil species that are intermediate between ancestral and derived species
  11. 18. Are traces of organisms that lived in the past
Down
  1. 1. Scientific theories are often comprised of two components process and
  2. 2. Heritable trait that increases an individual's fitness
  3. 3. Reproduction as a result of heritable variation
  4. 5. Occurs when an individual's phenotype changes in response to changes in the environment
  5. 6. An individuals ability to produce surviving offspring
  6. 13. This tike is divided into eons, eras, periods, and epochs
  7. 17. Darwin has how many Postulates