Across
- 2. Enzyme no longer works
- 4. The sounds of the valves closing with each heart beat
- 5. Of the Kidneys
- 7. Pictures made using a microscope
- 9. To keep as few cell walls as possible between sunlight and the chloroplasts
- 11. These make the mexican wave in your body
- 12. Due to this, plants stay upright even if it does not have wood
- 13. Without this, the water column will break apart
- 15. Picking up information about changes in the environment of the organisms and reacting to the changes
- 17. Each stage in a food chain
- 18. Area where an organism lives
- 19. Artificial partially permeable membrane
- 20. This contains things that can help in making sonos(in latin)when air passes over them
Down
- 1. Taking in of materials for energy, growth and development
- 3. Untreated sewage can lead to this
- 6. to make amino acids, which can then be used for making proteins
- 8. Part of the system contains blood vessels that take the blood to all parts of the body except the lungs
- 10. This is located in liver and can breakdown hydrogen peroxide to water and oxygen
- 14. All sprinters pay this back
- 16. The type of valves preventing blood from flowing into the ventricles