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