Natural Selection

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Across
  1. 5. hide or disguise
  2. 6. genetically from parents or ancestors
  3. 8. English naturalist, biologist
  4. 9. opinion or idea
  5. 10. organisms capable of exchanging genes
  6. 11. changing of he structure of a gene
Down
  1. 1. act or process of changing to survive
  2. 2. the tool of evolution
  3. 3. changes in organisms during lifetime
  4. 4. change or difference
  5. 7. changing all life forms