Chapter 17

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Across
  1. 5. that are similar in different species of common ancestors
  2. 7. The process by which modern organisms have descended from ancient organisms
  3. 8. The selective breeding of plants and animals to promote the occurrence of desirable traits
  4. 9. How well an organism can survive and reproduce
Down
  1. 1. A structure inherited from ancestors but which has lost much or all of its original function
  2. 2. Heritable characteristics that increase an organism's ability to survive and reproduce
  3. 3. parts that share a similar process but not an evolutionary history
  4. 4. The study of the past and present distribution of organisms
  5. 6. The preserved remains of, or traces of, ancient organisms
  6. 10. The process by which organisms that are most suited to their environment survive and reproduce most successfully