5.2 Natural Selection

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