Evolution

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Across
  1. 3. slow change
  2. 7. many from one
  3. 8. new species
  4. 9. migration
  5. 10. branch of biology
Down
  1. 1. survival of the fittest
  2. 2. preservation
  3. 4. recent ancestor trait
  4. 5. classification
  5. 6. sorting tool