Evolutionary ecology 3: Natural selection

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Across
  1. 5. occurs when the most extreme phenotypes have the highest fitness (increases phenotypic variance by eliminating intermediate forms)
  2. 6. changes the mean value of a trait
  3. 10. occurs when intermediate phenotypes have the highest fitness; reduces phenotypic variance
Down
  1. 1. selection may favor alternative morphs in alternative environmental conditions
  2. 2. a situation in which the relative fitness of a phenotype is a function of its frequency in a population
  3. 3. an approach where comparison of species is used to test hypotheses about adaptation or other evolutionary phenomena
  4. 4. the variability in observable traits among individuals in a population
  5. 7. the process of change by which an organism or species becomes better suited to its environment
  6. 8. occurs when theres variation, inheritance, and correspondence between the train and fitness
  7. 9. reproductive success over a lifetime