Speciation

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Across
  1. 2. Group of individuals of the same species living in the same area
  2. 5. Type of speciation occurring without geographic separation of populations
  3. 6. Change in heritable characteristics of a population over successive generations
  4. 7. Trait that improves an organism’s survival in its environment
  5. 9. Separation of populations that prevents interbreeding and gene flow
  6. 10. Type of speciation driven by physical geographic barriers between populations
Down
  1. 1. Process by which new distinct species arise from existing ones
  2. 3. Group of organisms born and living at the same time in a population
  3. 4. Measure of an organism’s reproductive success in its environment
  4. 8. Alternative form of a gene found at the same location on a chromosome