Across
- 2. transports oxygen, wastes, hormones
- 7. two or more organs that work together
- 8. protects against infection
- 12. brings in oxygen for cells
- 13. produces hormones that act on target tissues
- 14. produces and transports reproductive cells
- 15. breaks down and absorbs nutrients
Down
- 1. regulates body's response to changes in environment
- 3. provides voluntary/involuntary movements
- 4. a long extension of a cell
- 5. protects against diseases
- 6. supports and protects vital organs
- 9. filters blood and eliminates waste products
- 10. supports and protects other tissues/organs
- 11. a group of tissues that carry functions