Endocrine, Immune, and Integumentary Systems

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Across
  1. 2. chemical molecules which travel through the blood to affect body systems
  2. 4. secrete into body cavities or onto surfaces through ducts
  3. 6. foreign particle in the body
  4. 7. white blood cell
  5. 8. control of the body temperature
  6. 9. system which protects the body from infection
Down
  1. 1. composed of the skin, hair and glands associated with the skin
  2. 3. weakened or killed antigen which when injected promotes immunity
  3. 5. oil glands