Across
- 3. system used for reproduction
- 5. helping to break down food and release energy
- 7. system which circulates blood, haemoglobin, oxygen, plasma, water.
- 8. system providing a frame to the body through bone structure.
Down
- 1. system fighting against diseases and protecting us from infection.
- 2. helping in breathing
- 4. messenger of the body system using nerves.
- 6. removal of waste products from the body