Across
- 2. System that removes wastes from the body
- 6. A group of organs working together
- 9. Basic building blocks that make up tissues
- 11. A group of similar cells working together
- 12. The smallest unit of life
- 13. System that transports oxygen and nutrients
Down
- 1. System that breaks down food
- 3. System responsible for breathing
- 4. A structure made of different tissues that performs a specific job
- 5. A smaller system that is part of a larger system
- 7. System that allows the body to move
- 8. System that sends messages using nerves and the brain
- 10. Muscle that pumps blood through the body