Biology Crossword Puzzle

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Across
  1. 4. Age of Reptiles
  2. 5. Monera, Protista, Fungi, Plantae, and Animalia
  3. 7. every organism has a unique, 2 part name
  4. 8. Radioactive dating uses carbon to determine how many _______s a fossil has lived
  5. 11. ended when the first multicellular organism was created
  6. 14. The taxonomy 5th in line
  7. 15. the oldest form of bacteria
  8. 16. shorter than an era but longer than an epoch
  9. 19. The second half of the name in binomial nomenclature
  10. 20. A major division of time spanning a very long span of history
Down
  1. 1. A taxonomy below kingdom and above Class
  2. 2. Age of mammals and insects
  3. 3. The first half of the name in binomial nomenclature
  4. 6. The largest form of taxonomy
  5. 9. The next possible mass extinction happening now
  6. 10. the branch of science concerned with classification, especially of organisms
  7. 12. written tool used to identify organisms, a series of choices between two options
  8. 13. Age of Marine Life
  9. 17. The taxonomy 4th in line
  10. 18. The taxonomy above genus