Human Body Systems and Organization

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Across
  1. 3. removes wastes from body
  2. 5. a group of similar organs working together
  3. 8. pumps oxygen, nutrients, and immune cells around body
  4. 12. sends chemical signals to control the body
  5. 13. provides structure and support
Down
  1. 1. brings in oxygen and release carbon dioxide
  2. 2. sends electrical signals to control the body
  3. 4. a group of similar cells working together
  4. 6. helps the body move
  5. 7. a group of similar tissues working together
  6. 9. fights infection and promotes healing
  7. 10. the smallest unit of life
  8. 11. breaks down and absorbs food and nutrients