Across
- 5. System that works with circulatory system to transport materials to and from cells
- 6. System that fights off foreign invaders
- 8. System that works in response to the environment
- 9. System that uses hormones to regulate the body's actions
- 12. System that removes waste from the body
- 14. Reproductive system that produces sperms
- 15. System that gives structure to the body
Down
- 1. Nervous system that contains nerves that connect to different parts of the body
- 2. Reproductive system that produces eggs
- 3. System that breaks down food
- 4. System that defends from injury and illness
- 7. System that allows movement
- 10. System that moves blood around the body
- 11. System that exchanges Oxygen and Carbon Dioxide gases in the lungs
- 13. Nervous system part that contains the brain and spinal cord