Across
- 3. Tubes transporting water in plants
- 7. Tube carrying urine from kidney to bladder
- 10. Drooping or sagging of plants
- 11. Related to the kidneys
- 13. Process of eliminating waste
- 14. Space rocks that reach Earth's surface
- 17. Tiny structures on roots increasing surface area for better water absorbtion
- 19. Brightness of light source
- 20. Waste product in urine
Down
- 1. Green pigment in plants
- 2. Organ that stores urine
- 4. Large-scale loss of species
- 5. Water loss through plant leaves
- 6. Amount produced in agriculture
- 8. Organ that filters blood
- 9. Circulation of carbon in the environment
- 12. Substance added to soil for nutrients
- 15. Pores on leaves for gas exchange
- 16. Process by which plants make food
- 18. Partially melted snow or ice