Evolution Crossword

12345678910111213141516171819
Across
  1. 8. Structures that are similar.
  2. 9. A characteristic that helps an organism survive.
  3. 11. Formation of a new species.
  4. 12. When organisms disapear from the earth.
  5. 14. When two species evolve together.
  6. 16. Structures that have no current function.
  7. 17. The process by which evolution occurs; natural _____.
  8. 18. Has different shaped beaks depending on which island their from.
  9. 19. Preserved remains of ancient organisms.
Down
  1. 1. Natural selection is also known as survival of the _______.
  2. 2. When one species evolves into many; adaptive ________
  3. 3. The name of Darwins book; The ____ of Species.
  4. 4. Islands that Darwin visited.
  5. 5. When two unrelated organisms look alike (shareks & Dolphins).
  6. 6. Has different shells depending on the island their from.
  7. 7. Required for new species to form.
  8. 10. Proposed the theory of evolution by natural selection.
  9. 12. Change over time.
  10. 13. Refers to the variety of living things.
  11. 15. The study of the Earth.