Chapter 16-17 Review

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Across
  1. 2. ____ selection is where humans are the determinants of selected traits
  2. 9. combined genetic information of all members of a particular population
  3. 12. ___ hypothesized that acquired traits can be inherited
  4. 14. hybrid ____ occurs when two different species produce offspring that cannot develop to adulthood
  5. 16. migration of alleles into or out of a population
  6. 17. isolation that occurs after fertilization
  7. 18. bird species that Darwin observed on the Galapagos
  8. 19. type of selection in which a particular trait is enhanced
  9. 20. any random occurrence that can change the frequency of a alleles
  10. 22. an inherited characteristic that increases an organism's fitness
  11. 23. state in which alleles remain constant
  12. 25. isolation in which courtship behaviors differ
  13. 27. only ___ can evolve
  14. 28. isolation in which habitats are different
  15. 29. reproductive ___ separates different species
  16. 30. Natural Selection selects the ___ of a population
Down
  1. 1. event in which a large population decreases in size dramatically
  2. 3. the development of a new species over time
  3. 4. scientist who developed the theory of uniformitarianism
  4. 5. isolation in which physical components of organisms are mismatched
  5. 6. type of selection in which organisms move away from the average
  6. 7. isolation that occurs before fertilization
  7. 8. hybrid ___ occurs when subsequent generations degenerate
  8. 10. scientist who developed the theory of deep time
  9. 11. evolution is the change in ____ over time
  10. 13. type of selection in which organisms move toward the average
  11. 15. hybrid ___ occurs when two different species produce sterile offspring
  12. 21. isolation in which mating times are different
  13. 24. the main source of genetic variability
  14. 26. ability of an individual organism to survive and reproduce