Body Systems

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Across
  1. 4. encloses internal body structure
  2. 5. small/large intestines
  3. 6. activates bodily responses
  4. 7. provides heat protection
  5. 9. delivers oxygen to blood
  6. 10. defends against pathogens
Down
  1. 1. delivers oxygen/nutrients to tissues
  2. 2. supports body
  3. 3. removes waste
  4. 8. hormone producing gland