biology

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Across
  1. 3. Rundom changes in gene frequencies withing a population
  2. 4. Natural selection favors one extreme trait
  3. 6. A sharp decrease in population size due to a sudden event
  4. 8. It is a mechanism for change in living things
  5. 11. A trait that helps an organism to survive and reproduce in its environment
  6. 13. equilibrium ideal coadions where gene frequcuces in a population stay the same
  7. 14. The total collection of genes in a population
  8. 15. Blending in with the surroundings to hide
  9. 16. The transfer of genetic material from one population to another
  10. 17. Reproduction at different times to prevent interbreeding
Down
  1. 1. Diffrence in gene within a group of organisms
  2. 2. Nutral selection favors both extreme traits
  3. 5. selection population separated by phiscal barriars
  4. 7. Diffrence in mating behaviors that prevent interbreeding
  5. 9. Selevtive breeding for something like faster horses
  6. 10. The ability of an organism to survive and reproduce
  7. 12. Structures with a similar origin, even if they have different functions
  8. 18. A group of the same species living in the same place