Genetics Crossword Puzzle #4 Study Guide

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Across
  1. 3. History of life documented by fossils.
  2. 7. Made fossil discoveries of organisms with backbones moving from water to land.
  3. 8. Lineage traced back to ancestors.
  4. 10. Remnants of an organism found in rock.
Down
  1. 1. Pattern of bones in tetrapods
  2. 2. Items above are younger than items beneath.
  3. 4. Amount of salt dissolved in a liquid.
  4. 5. Diagram showing how members of a family are related to each other.
  5. 6. Study of the Earth.
  6. 9. Diagram showing how items are related evolutionarily.