Evolution and Natural Selection

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Across
  1. 7. processes to better fir their environment
  2. 10. a change in how an animal acts in response to a change
  3. 11. Can be done with 1
  4. 14. bacteria become resistant to antibiotics
  5. 15. process of how bacteria reproduce
  6. 17. drifting of alleles in response to a change
  7. 18. introduction of genetic material
  8. 20. a change in how an animals moves or looks in response to a change
Down
  1. 1. A reduction of genetic variation
  2. 2. similar structure but different functions
  3. 3. requires 2 partners
  4. 4. Has a distinct nucleus
  5. 5. similar structures
  6. 6. the process of animals adapting and changing
  7. 8. size of a population severly decreases
  8. 9. two species evolving with each other
  9. 12. evolution causes a species to become a new distinct species
  10. 13. No more of the animal is left
  11. 16. Doesnt have a distinct nucleus
  12. 19. 1,000,000,000 of this single celled organism