Geologic Time

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Across
  1. 4. The shapes and arrangements of the bones into a pattern of organization
  2. 5. structure, Similar structures in the body that related species have inherited from a common ancestor
  3. 7. Fossil,Fossils that show the link between past and present organisms
  4. 8. Genetic information inside the cells of the body that has the instructions for how to make a body
Down
  1. 1. Used to determine the evolutionary relationships among species
  2. 2. The purpose of something or a particular kind of work that it does
  3. 3. Tree, A diagram that shows how scientist think different organisms are related
  4. 6. layers of rock