Biogeochemical Cycles and Disturbances

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