Excretory System

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Across
  1. 3. A bean shaped organ (There are 2 of them)
  2. 4. Part of respiratory system, take in oxygen, release carbon dioxide
  3. 6. The excretory system removes...
  4. 8. In digestive system, larger than small intestine (dash between 2 words)
Down
  1. 1. Where urine exits
  2. 2. Pouch that holds urine
  3. 5. 2 tubes that extend from the kidneys to the bladder
  4. 7. Part of integumentary system, filters out salt