Evolution and Natural Selection

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Across
  1. 4. study of the past
  2. 5. formation of new species
  3. 7. all the genes
  4. 8. structure that is inherited by ancestors
  5. 10. trait controlled by the gene that has 2 allele
  6. 12. change in allele frequency
  7. 13. change over time
  8. 14. preserved remains
  9. 16. random change in allele frequency
  10. 17. higher fitness in the middle
  11. 18. survival of the fittest
  12. 20. how well organisms can survive and reproduce in an enviroment
Down
  1. 1. share common function but not structure
  2. 2. trait controlled by two or more genes
  3. 3. structures that are similar in different species
  4. 6. higher fitness in the ends
  5. 9. center of a distribution curve have higher fitness
  6. 11. a group of similar organisms that can breed and produce fertile offspring
  7. 15. number of times that an allele occurs in a gene pool
  8. 19. heritable characteristic