crossword by nathan and clinton

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Across
  1. 3. increases after exercise
  2. 4. contains DNA
  3. 6. is when a part of the heart dies due to the lack of oxygen flowing to that part
  4. 8. is the exchange of oxygen and carbon dioxide in the lungs
  5. 9. is the longest bone in your body
  6. 11. the role of this system unnecessary materials from an organism
  7. 12. produces enzymes
  8. 15. where oxygen enters the blood
  9. 16. are a solid concretion or crystal aggregation formed in the kidneys from dietary minerals in the urine.
  10. 17. the liver produces this
  11. 18. the process of which a pant undergoes to create energy
  12. 19. carries deoxygenated blood to the heart
  13. 21. Sever, nick, tear or damage any one of them and you are likely to bleed to death.
  14. 22. are a series of muscle contractions that occur in your digestive tract
  15. 23. stores food and liquids
  16. 26. commands your body
  17. 28. filters air
  18. 29. prevents food from entering our airway
  19. 30. where photosynthesis occurs in plants
  20. 32. stores urine
  21. 33. help break down cabohydrates
Down
  1. 1. contains 90% water and the rest is dissolved nutrients
  2. 2. circulates blood around the body
  3. 3. profuse bleeding from ruptured blood vessels
  4. 5. filters air
  5. 6. is found in gastric acid
  6. 7. a soft muscular tube that moves food from the pharynx to the stomach
  7. 10. absorbs nutrients into the blood stream
  8. 13. chemical breakdown of food
  9. 14. the power house of the cell
  10. 20. the stuff the liver produces is stored here
  11. 24. the process of generating energy
  12. 25. pumps blood out at high pressure to the body
  13. 27. delivers nutrients to, and removes waste from anywhere in the body
  14. 30. this blood vessel is one cell thick
  15. 31. where oxygen and carbon dioxide are exchanged