Natural Selection Crossword

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Across
  1. 2. Mutations that have no effect on survival
  2. 3. Change over time
  3. 6. The type of selection where humans decide what traits get passed down
  4. 8. Mutations that are helpful are considered ___
  5. 9. Mutations that hurt survival are considered ___
  6. 12. Alterations to body structure or function that helps the organism better survive
  7. 13. Differences with a species
  8. 14. Organism affected by natural selection after the Industrial Revolution
Down
  1. 1. Creating new offrspring
  2. 4. English naturalist who studied Natural Selection
  3. 5. The type of selection where nature "decides" what traits are passed down
  4. 7. Bird species that Charles Darwin famously noticed the change in beak shape
  5. 10. Small changes in an organism's DNA
  6. 11. Chain of islands Charles Darwin studied on