5th Biology

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Across
  1. 3. Universal donor blood group
  2. 8. Protein-digesting stomach enzyme
  3. 9. Tooth for grinding food
  4. 10. Primary colon function
  5. 13. Stomach pH creator
  6. 14. Rib muscles contracting in inhalation
  7. 15. Inhalation-lowering muscle
  8. 18. Bile-producing organ
  9. 19. Final starch digestion product
  10. 21. Brain part detecting CO2 change
  11. 25. Trachea common name
  12. 26. Hormone chemical messengers from glands
  13. 27. Blood fluid component, mostly water
  14. 28. Substance emulsifying fats in small intestine
  15. 30. Voice box name
  16. 32. Trachea-branching tubes
Down
  1. 1. Trachea-open-keeping cartilage
  2. 2. Muscle action moving food in canal
  3. 4. Skeleton-protecting bones for heart
  4. 5. Joint-lubricating substance
  5. 6. Enzyme in saliva digesting starch
  6. 7. Vertebrae-protecting structure
  7. 11. Oxygen-transporting pigment
  8. 12. Red blood cell shape
  9. 16. Diabetes-treating hormone
  10. 17. Lung air sacs for gas exchange
  11. 20. Gas exchanged from blood to lungs
  12. 22. Gland producing lipase
  13. 23. Muscle-to-bone connectors
  14. 24. Blood cell production site
  15. 29. Biological catalysts that break down food
  16. 31. Stomach wall protector from acid