Evolution Crossword Puzzle

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Across
  1. 2. Well tested idea that explains a range of observations
  2. 4. Small changes over time
  3. 5. Can Mate and reproduce
  4. 10. Differences in the same species
  5. 11. Species fight for food
  6. 12. organisms with desired traits are bred
  7. 17. Natures way of choosing
Down
  1. 1. Darwin's Book
  2. 3. Similar structures that species inherit from an ancestor
  3. 6. Can lead to natural selection
  4. 7. Change over time
  5. 8. Person who studies the natural world
  6. 9. Small changes that add up to major changes
  7. 13. trait that helps an organism survie
  8. 14. Ship that sailed for 5 years
  9. 15. Species change to new species
  10. 16. Preserved remains of an organism