Evolution

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Across
  1. 2. walks on two legs
  2. 3. isolation:a population is separated by distance
  3. 5. prehistoric organisms
  4. 6. tail:a tail of an animal that has adapted to be able to grasp or hold objects
  5. 7. in the DNA sequence
  6. 9. the natural process by which life arises from inorganic matter
  7. 14. Darwin created the theory o evolution
  8. 16. isolation:Species-specific signals and elaborate behavioral patterns
  9. 17. Survival of the ___?
  10. 18. selection:one of the basic mechanisms of evolution
Down
  1. 1. change in DNA sequence
  2. 4. arganism survive
  3. 8. drift: drift over time of gene frequencies
  4. 10. Lucy was a __?
  5. 11. a mamal that arose from an aniaml that live in trees
  6. 12. organs:have no functions
  7. 13. pool:is the set of all genes, or genetic information
  8. 15. isolation:Two species that breed at different times of the day