Ologies

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Across
  1. 4. Fish
  2. 5. Heart
  3. 8. Birds
  4. 9. Teeth
  5. 12. Urinary Problems
  6. 13. Skin
  7. 15. Respiration
Down
  1. 1. Movement
  2. 2. Muscles
  3. 3. Horses
  4. 6. Male studies
  5. 7. Animals
  6. 10. Blood
  7. 11. Life and living things
  8. 14. Cancer