Evolution

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Across
  1. 4. Another way of saying natural selection
  2. 8. He developed the theory of evolution by natural selection
  3. 9. The mechanism that drives evolution
  4. 11. Difference between members of a population
  5. 12. A genetic characteristic
  6. 13. another word for changes
  7. 16. Better suited individuals have an ________
  8. 18. The features that were different on the birds of the Galapagos Islands
  9. 19. The bird species that Darwin famously studied
  10. 20. The ship that Darwin sailed on
Down
  1. 1. The islands where Darwin studies finches
  2. 2. A battle between members of a population for resources
  3. 3. Links two different species
  4. 5. Best suited to their environment
  5. 6. Individuals with favourable variations are more likely to ________________
  6. 7. He developed a theory of evolution by natural selection at the same time as Darwin
  7. 10. Lamarck cut these off rats
  8. 14. Suggested animals could aquire features and pass them on
  9. 15. Another word for the next generation (also a band)
  10. 17. Those that survive are more likely to ______ and pass on their genetics