Natural Selection

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Across
  1. 9. New species is formed in an isolated enviorment
  2. 11. When to organisms are fighting for the same resource
  3. 14. How life begins and develops
  4. 17. A group between a species seperates
  5. 18. Changes to an organism before death
  6. 20. Takes place in a science lab and is created by humans
  7. 21. A trait that increases in a organism
  8. 22. Chosing the middle in everything
Down
  1. 1. Skeletal elements that look similar to ancestor
  2. 2. Made in a lab
  3. 3. When species become isolated
  4. 4. Organisms adapt to their enviorment
  5. 5. The individuals with the best trait will survive and breed
  6. 6. Two subpopulations of a species evolve and reproduce
  7. 7. To many offsprings are born and habitat cannot sustain
  8. 8. Selection against middle
  9. 10. Individuals with trats that survive better
  10. 12. Features that lost original funtion
  11. 13. The main topic
  12. 15. Charles darwins theory
  13. 16. A way of creating new species without physical barriers
  14. 19. Selection of looks