Across
- 4. helps fight bacteria and viruses
- 6. makes hormones
- 9. supports the body and gives it its shape
- 10. breaks down food and absorbs nutrients
- 11. gets rid of waste (not feces)
Down
- 1. generates force to allow movement
- 2. fancy word for skin
- 3. allows humans to make more humans
- 5. sends electical signals throughout the body
- 7. transports nutrients and oxygen to the parts of the body.
- 8. takes in oxygen, and expels carbon dioxide.