Luh Pizzy

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Across
  1. 2. how many years ago did the first dinos appear
  2. 3. how many years ago did the meteor wipe out the dinos
  3. 7. The distribution of species on earth
  4. 11. The unit we is in CURRENTLY RIGHT NOW AT THIS MOMENT IN TIME
  5. 12. Process of evolving new species
  6. 13. Jeff is an early example of these types of organisms
  7. 14. Body parts that seem similar but are NOT from a common ancestor
  8. 15. Single celled organisms that are bacteria or archea.
  9. 16. Uses gene sequences to help scientists know what animals are more closely related through DNA
Down
  1. 1. how many years ago did the first vertebrates evolve
  2. 4. Organisms that are more "fit" for a habitat
  3. 5. how many years ago did the first insects evolve
  4. 6. Bones that scientists dig up
  5. 7. A catastrophic even that randomly kills a large portion of the population
  6. 8. What did the mosquito gain resistance to
  7. 9. What animal is Liam
  8. 10. The choice of mates