Unit 2 Review

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Across
  1. 4. renal artries carries blood to this part of organ
  2. 6. main organ of the digestive system
Down
  1. 1. carry blood from heart to capilaries to the body
  2. 2. fight infections
  3. 3. main organ of respiratory system
  4. 5. it pumps between 60 and 100 times per minute