Tiered Evolution

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Across
  1. 2. change of location
  2. 4. Natural Stealth
  3. 6. Excersize
  4. 9. common ancestry
  5. 11. desirable reproduction
  6. 13. survival of the fittest
  7. 14. external homeostasis
  8. 15. Genotype Frequency
  9. 16. unexpected change
Down
  1. 1. common adaption
  2. 3. most likely to survive
  3. 5. physical changes
  4. 7. appendix,useless
  5. 8. survival changes
  6. 10. copying
  7. 12. Gradual Change