Biogeochemical Cycles and Disturbances

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Across
  1. 3. The continuous recycling of matter through living things and the environment
  2. 4. The step in the nitrogen cycle where nitrogen-fixing bacteria convert atmospheric nitrogen into ammonia
  3. 8. Natural reservoirs that trap more carbon than it releases, reducing the available carbon dioxide in the atmosphere
  4. 11. Produced by cattle and traps 30X more heat than carbon dioxide
  5. 13. The way in which carbon moves through the food chain
  6. 14. Combustion of these occurs when driving a vehicle
  7. 15. Overgrowth of algae caused by excess nitrogen nutrients in an aquatic ecosystem
  8. 16. Cutting down forests, increasing the amount of carbon dioxide in the atmosphere
Down
  1. 1. These bacteria convert nitrates into atmospheric nitrogen
  2. 2. The organelle that performs cellular respiration within the cell
  3. 5. The step in the nitrogen cycle where decomposers break down proteins into ammonia
  4. 6. Process undergone by both plants and animals where oxygen and glucose make carbon dioxide, glucose, and energy
  5. 7. The most abundant element in the atmosphere
  6. 9. The step of the nitrogen cycle where ammonia is converted to nitrates by nitrifying bacteria
  7. 10. The process producers use to make glucose and oxygen from sunlight, carbon dioxide, and water
  8. 12. Assimilation converts ammonia or nitrates into _________ for plants