Biology Unit 6

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Across
  1. 1. Migration of individuals out of a population.
  2. 3. Random changes in allele frequencies attributed to luck, not fitness.
  3. 7. Selection within a population due to human interference + selection of desired traits.
  4. 9. Isolation of a population due to differences in the timing of mating.
  5. 11. Group of individuals of the same species that live in the same area at the same time and can interbreed.
  6. 15. When a small part of population is separated from the rest and colonizes a new area - often respond differently to natural selection.
  7. 17. Type of natural selection in which individuals at either extreme of the bell curve achieve higher fitness and the average is selected against.
  8. 18. When organisms will impersonate other organisms to increase fitness.
  9. 19. The idea that those individuals best suited to their environment will achieve higher fitness.
  10. 20. Measurement of the ability of an individual to survive and reproduce successful offspring.
Down
  1. 2. Migration of new individual into a population.
  2. 4. Type of natural in which individuals with one extreme phenotype have an advantage and the other extreme is selected against.
  3. 5. Type of natural selection in which individuals with the average phenotype have an advantage and the extremes are selected against.
  4. 6. Collection of all the alleles present in a population.
  5. 8. Isolation of a population due to physical barriers such as a fence, mountain range, or body of water.
  6. 10. Any characteristic that increases the fitness of an individual.
  7. 12. refers to the differences among individuals in a population.
  8. 13. Percent of individuals of a population that have a particular trait - Expressed as a number between 0 and 1
  9. 14. Describes movement of genes/individuals between 2 neighboring populations - makes populations more alike.
  10. 16. Isolation of population due to differences in communication, mating rituals, or other behaviors.