evolution and natural selection

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Across
  1. 2. - Increases the expression of an extreme version of a trait in a population
  2. 4. - Selection of traits that aren't necessarily good for survival fitness but without them you can't pass on youir genes bc you can't reproduce
  3. 5. - A process that splits a population into two groups
  4. 6. A measure of how well you can survive in your environment
  5. 10. Traits acquired from previous generations
  6. 11. Drift Random change in the frequency of alleles in a population over time
  7. 13. : Organisms with the best traits will live longer and reproduce more than others
  8. 14. Evolution that occurs on a large scale that affects changes in species across populations
  9. 15. evolution that occurs on a small scale affecting a single population
Down
  1. 1. modification is a change in gene frequency over time
  2. 3. A feature that allows organisms to better survive in its environment
  3. 7. - Eliminates extreme expressions of a trait when the average expression leads to higher fitness
  4. 8. Frequency - Number of times the allele appears in a population
  5. 9. Pool Combined alleles of all E individuals in a population
  6. 11. Flow Movement of genes into/out of a population
  7. 12. Differences in the physical traits of organisms