Natural Selection

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Across
  1. 2. notion an organisms pass on to offspring
  2. 6. process of adapting
  3. 8. develop gradually
  4. 9. organisms use to disguise their apperance
  5. 11. all species gradually change
  6. 12. process of mutating
Down
  1. 1. difference in condition amount or level
  2. 3. theory of biological evolution
  3. 4. this is the tool of evolution
  4. 5. genetic information passed on
  5. 7. explanation for observations of natural world
  6. 10. organisms that can reproduce