Evolution

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Across
  1. 4. have the same function but not the same structure
  2. 5. chance over time rather than sudden change
  3. 6. remains of organisms that become part of rock, bone, plants...
  4. 8. the ability to survive and reproduce
  5. 9. changes in traits over time
  6. 10. the rate of certain traits doesn't change
Down
  1. 1. remains of organisms that show that hey have common ancestor
  2. 2. body parts that have a similar structure
  3. 3. one of the genders selects the trait they wish to reproduce with
  4. 7. structures that were used by ancestors are no longer being used