Evolution Crossword

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Across
  1. 2. Darwin's first name
  2. 3. Having two different alleles for a gene
  3. 5. Random changes in allele frequency
  4. 9. How often an allele appears in a population
  5. 10. All genes present in a population
  6. 13. Two species evolve in response to each other
  7. 14. Formation of new species
  8. 18. Physical appearance
  9. 19. Radiation of species into other diverse species
  10. 22. Fur color of pocket mice that survive on desert sand
  11. 24. Type of selection: higher fitness at edges of curve
  12. 25. Differences
  13. 26. Type of reproductive isolation due to river
  14. 29. Type of selection: higher fitness in center of curve
  15. 30. Ability to survive and reproduce
  16. 31. Type of evolution when unrelated organisms resemble each other
  17. 32. A form of a gene
  18. 33. Individuals do not evolve, but these do
  19. 36. Structures in organisms proving common descent
  20. 37. Type of reproductive isolation due to timing
  21. 38. Type of reproductive isolation due to different mating rituals
  22. 39. Structures that are reduced in size; not used
  23. 40. Type of animal that is eaten by another
  24. 41. Traits controlled by two or more genes
Down
  1. 1. Survival of the fittest
  2. 4. Study of early stages of animal development
  3. 6. Species that has died out
  4. 7. Fur color of pocket mice that survive on volcanic rock
  5. 8. Equilibrium interrupted by bursts of evolutionary change
  6. 11. Genetic change over time
  7. 12. Genetic make-up
  8. 15. Darwin's ship
  9. 16. Islands where Darwin studied
  10. 17. Naturalist who published theory of evolution
  11. 20. Inherited trait that increases chances of survival
  12. 21. Preserved remains of ancient organisms
  13. 23. Slow, steady evolutionary change
  14. 27. Allele frequency change due to subgroup migration
  15. 28. Type of selection: higher fitness at one end of curve
  16. 34. Type of animal that eats another
  17. 35. Change in sequence of DNA
  18. 42. Genetic ________ means that allele frequencies remain constant