Evolution

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Across
  1. 7. Process by which organisms change over generations
  2. 9. Structures that have the same origin but different functions
  3. 14. Process where organisms with favorable traits survive and reproduce more
  4. 15. Ability of an organism to survive and reproduce
Down
  1. 1. Transfer of genes from one population to another
  2. 2. Separation of populations preventing interbreeding
  3. 3. Scientist who explained evolution through natural selection
  4. 4. Remains or impressions of organisms from the past
  5. 5. Process by which new species are formed
  6. 6. Feature that helps an organism survive in its environment
  7. 8. Process of choosing individuals with advantageous traits
  8. 10. Random change in gene frequency in a small population
  9. 11. Differences in characteristics among individuals of the same species
  10. 12. Structures that have different origins but similar functions
  11. 13. Sudden change in genetic material that can be inherited