evidence of evolution

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Across
  1. 4. column
  2. 7. fossil
  3. 9. dating
  4. 10. struture
  5. 11. evoilution
  6. 12. molecular biology,
Down
  1. 1. superposition
  2. 2. selection
  3. 3. structures
  4. 5. structures
  5. 6. observation.
  6. 8. evolution