5.2 Natural Selection

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Across
  1. 3. selection pressure based on temperature, weather conditions or geography
  2. 4. selection pressure based on the presence of food, habitat, shelter and territory
  3. 6. process through which populations of living organisms adapt and change
  4. 8. selection pressure based on pathogens and disease
  5. 11. struggle for survival (species tend to produce more offspring than the environment can support)
  6. 12. Environmental pressures lead to differential reproduction within a population
  7. 13. An example of adaptive radiation can be seen in the variety of beak types
Down
  1. 1. rapid evolutionary diversification of a single ancestral line
  2. 2. Over time, there is a change in allele frequency within the population gene pool
  3. 5. Individuals with beneficial traits will be more likely to survive and pass these traits on to their offspring
  4. 7. selection pressure:animals hunting on their prey
  5. 9. one of two or more versions of a gene
  6. 10. difference between organisms caused by genetic differences or environmental factors