Natural Selection

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Across
  1. 3. boat Darwin sailed on
  2. 7. well-tested explanation for experimental results
  3. 8. big turtles Darwin studied
  4. 10. how something evolves
Down
  1. 1. a organism that have same traits and can reproduce
  2. 2. a scientific guess
  3. 4. getting used to what you are doing or your environment
  4. 5. birds Darwin studied the most
  5. 6. father of modern evolution
  6. 9. artifact of something that lived long ago