Across
- 3. an excretory product made in the liver from excess amino acids
- 5. getting rid of waste materials from the body; specially these waste materials have been inside the body
- 7. an organ in which urine is stored before removal from the body
- 10. tube that transports water and mineral salts up and down the plant
- 13. a mineral to convert carbohydrate to protein in plant
- 14. a pair of tubes that carries urine from the kidneys to the bladder
- 17. a leaf layer where most chloroplast are found
- 18. a tube that carries urine from the bladder to the outside of the body
- 19. a developing baby being grows inside its mother
- 21. the loss of water vapour from the leaves of a plant
- 22. substance that dissolve in the blood of the smokers
Down
- 1. nutrient that supplies energy for living thing
- 2. a process when plants make their own food
- 4. a tube that brings blood from heart to the kidneys
- 6. specialised cells in the outer layer of a plant root
- 8. cell that connect the air space inside the leaf with the air outside
- 9. a pair of organs in the upper abdomen which filter the blood and produce urine
- 11. mineral to make the chlorophyll in plant
- 12. nutrient needed to help the fetus to produce new cells and grow
- 15. empty space in soil filled by water, air, and minerals
- 16. when a plant cell doesn’t contain enough water, it becomes soft and floppy
- 20. a liquid produced by the kidneys, which contains urea and other waste substances dissolved in water