evolution

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Across
  1. 4. survival of the fittest
  2. 7. different version of something
  3. 10. collection of animals
  4. 11. Charles Darwin theory
  5. 12. n idea about something
Down
  1. 1. evolve
  2. 2. evolution
  3. 3. scientist
  4. 5. change in characteristics
  5. 6. genes
  6. 8. adapt
  7. 9. change