Unit 6: Taxonomy and evolution

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Across
  1. 4. technique used to separate pigments by solubility
  2. 6. scientist who developed the theory of natural selection
  3. 9. theory that states present day species are descendants from earlier species
  4. 10. the raw material of evolution
  5. 11. technique used to separate DNA fragments by size
Down
  1. 1. refers to structures that look the same but perform different functions
  2. 2. states that individuals with favorable variations will outlive and reproduce more than other organisms
  3. 3. developed the theory of use and disuse
  4. 5. model which describes evolution as a slow and steady process
  5. 7. branch of science dealing with the classification of organisms
  6. 8. any trace of a once living organism
  7. 9. organic catalyst