Across
- 4. Tube that carries urine from bladder to outside of the body
- 6. Waste from respiratory system
- 7. Waste from digestive system
Down
- 1. Tubes from kidney to bladder
- 2. Waste from integumentary system
- 3. Storage sac for urine
- 4. Cellular waste
- 5. Main organ of excretory system