Evolution and Natural Selection

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