Across
- 4. This human system gives the body shape.
- 6. This human system carries waste materials away from different parts of the body.
- 7. Undigested food enters the large __________.
Down
- 1. This human system helps different parts of the body to move.
- 2. The __________ system breaks down food into simple substances.
- 3. This human system takes air into the body.
- 5. Different parts of a system work together to carry out a ________.