Evidence of Evolution

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Across
  1. 8. Observable traits of an organism
  2. 9. Dating fossils using radioactive decay
  3. 10. Genetic makeup of an organism
  4. 12. Preserved remains of ancient life
  5. 14. A form between an ancestor and its descendant
  6. 15. Similar structures in different species
Down
  1. 1. Determining fossil age by rock layers
  2. 2. Study of body structures
  3. 3. Study of chemical processes in living things
  4. 4. A gene involved in embryonic development
  5. 5. A species showing evolutionary changes over time
  6. 6. A structure with no current function
  7. 7. Study of species distribution
  8. 11. Study of ancient life through fossils
  9. 13. Study of developing embryos