Levels of Organization 9/15

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Across
  1. 5. a group of organs working together
  2. 7. organ system that helps the body extract nutrients from food
  3. 10. organ system that helps the body move
  4. 11. takes in oxygen, releases carbon dioxied
  5. 13. organ system that circulates blood throughout the body
  6. 14. pumps blood throughout the body
  7. 15. type of cell that carries oxygen
Down
  1. 1. type of cell that sends signals to the brain
  2. 2. protective barrier of the body
  3. 3. type of cell that helps the body move
  4. 4. command center of the body
  5. 6. the basic unit of life
  6. 8. a group of cells working together
  7. 9. a group of tissues working together
  8. 12. organ system that provide structure and support for the body, contains bones