Across
- 4. Bones are a part of this organ system
- 8. The heart is an example of a
- 9. Intakes oxygen and expels carbon dioxide
- 10. Blood is pumped through the
- 11. A single living thing
- 12. Cells working together compose a
- 13. Fights off infections and disease
Down
- 1. Makes conscious decisions
- 2. Helps us move
- 3. The intestine is part of the
- 5. Waste is disposed of by the
- 6. A balance in the body needed to survive
- 7. A group of organs that work together
- 10. We are made of billions of them