Across
- 1. Greenhouse gas; largely produced by cattle
- 3. Store and release carbon slowly
- 5. Energy molecule with three phosphate groups
- 8. Key element for all living things
- 9. Greenhouse gases raise the global ___________
- 10. Plants with nitrogen-fixing bacteria in their roots
- 12. Carbohydrates and oxygen are byproducts
- 14. Not of biological origin
- 15. Carbon comp. that are eaten for usable energy (ex. sugar)
- 16. Process that converts ammonium and nitrate back to N2
- 20. For structure and body functions
- 21. Long-term energy storage
- 22. Nitrogen gas is "fixed" with hydrogen to produce this
Down
- 1. Increases the solubility of phosphate
- 2. Absorb more carbon than they release
- 3. Glucose and Oxygen are reactants
- 4. Matter that always contains Carbon and Hydrogen
- 5. Respiration in the absence of oxygen
- 6. Conducted an experiment with mice and plants
- 7. Respiration that uses oxygen
- 11. Produced by nitrification
- 13. Most abundant element in the air
- 17. Chemicals that an organism must have to live and grow
- 18. Coal, Oil, Gas
- 19. Part of the plant where photosynthesis occurs