Body Systems

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Across
  1. 3. millions of cells working together
  2. 4. instructions for building an organism
  3. 5. 23 pairs
  4. 8. provides structure for the human organism
  5. 10. smallest unit of a living thing
  6. 12. the heart
  7. 13. the brain, spinal cord, neurons, and nerve endings
  8. 14. the lungs and trachea
Down
  1. 1. responsible for your physical traits
  2. 2. the mouth, the stomach, the intestines
  3. 6. allows for movement
  4. 7. A and T, G and C
  5. 9. all body systems work _________
  6. 11. the arteries, the capillaries, the veins
  7. 15. made up of multiple tissues