Fossil Record/ Evolutionary History Vocab- Raygen Olson

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Across
  1. 2. Scientific law that states fossils located in deeper sediment layers are older than ones deposited in layers closer to the surface (3 words)
  2. 5. The study of ancient life
  3. 8. The formation of fossils as stone replaces decaying tissues
  4. 10. A branching tree diagram that shows ancestral relationships among organisms
Down
  1. 1. The mineralized remains of organisms, showing how long-dead organisms lived and how their bodies were structured
  2. 3. The natural process of result of being slowly broken down or decomposed, chiefly by bacteria and fungi
  3. 4. The permanent disappearance of a species from Earth
  4. 6. The study of the structures of organisms and their parts
  5. 7. The quality or state of having many different forms, types, ideas, etc.
  6. 9. To change the frequencies of alleles in a population over time