Metabolism puzzle 1

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Across
  1. 3. Organ that produces one of the immune cells
  2. 5. A protector of heart.
  3. 7. Hard protective covering of brain
  4. 9. Organ of blood distribution.
  5. 10. A vessel that carries blood in body
  6. 11. Organ that produces hormones
  7. 13. Detoxifier of harmful substances in body
  8. 14. Hormone that regulates metabolism and growth
  9. 15. A mother of all cells in body
  10. 16. One of the hormones.
Down
  1. 1. Master regulator that regulates function of other glands
  2. 2. Group of cells with similar function
  3. 4. Blood filtering organ
  4. 6. An organ that supplies oxygen and nutrients to the growing fetus
  5. 7. A place of breaking down of food in body.
  6. 8. Organ that manages waste material of body.
  7. 12. One of the hardest parts in body
  8. 15. Organ that perceives the touch