Evolution Crossword Puzzle

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Across
  1. 5. Change over time
  2. 7. All living creatures use ____ and share genes
  3. 9. Structures w/ similar features from a common ancestor
  4. 12. _____ can create new alleles
  5. 13. Organisms w/ more beneficial traits passed into offspring
  6. 15. dead organisms preserved as stone
  7. 16. evolution of a new species
  8. 17. evolution of two+ species become less similar
  9. 19. Random changes in a population's gene pool
Down
  1. 1. representation of lines of evolutionary descent and common ancestors
  2. 2. organisms bring/remove alleles when they enter/leave a population
  3. 3. evolution of two+ species become more similar
  4. 4. Organism's genetic contribution to the next generation
  5. 6. two+ species evolving together
  6. 8. embryos of very different organisms look similar
  7. 10. Published The Origin of Species
  8. 11. Change in population of organisms over time
  9. 14. The population changes to survive better
  10. 18. Structures that do not indicate recent common ancestors/ features with no known use