Evolution

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Across
  1. 2. example of ancestral trait
  2. 4. measure of a trait's relative contribution the following generation
  3. 6. study of the distribution of plants and animals around the world
  4. 8. of vertebrates illustrate homologous structures
  5. 9. allows organism to come almost invisible to predators
  6. 11. traits that are more primitive
  7. 12. early, prebirth stage of an organism's development
  8. 15. structures that have either a reduced function or no function in an adult organism
Down
  1. 1. can be used for the same purpose but are not inherited from a common ancestor
  2. 3. provide strong direct evidence to support evolution
  3. 5. example of vestigial structure
  4. 7. anatomical structures inherited from a common ancestor
  5. 8. example of a derived trait
  6. 10. one species resembles another species
  7. 13. species of bacteria are no longer killed by antibiotics have developed
  8. 14. traits that are newly evolved features that do not appear in the fossils of common ancestors