 |
 |
How Is Oxygen Cycled Through The Biosphere?
There are two main processes occurring in all ecosystems - energy flow and material cycling. Oxygen and carbon dioxide are cycled in a symbiotic relationship (mutualism) between plants, animals and bacteria. This carbon-oxygen cycle operates in water in much the same way as it does on land:
- Green plants use carbon dioxide and release oxygen during photosynthesis.
- Animals use oxygen and release carbon dioxide during respiration.
- Bacteria use oxygen and release carbon dioxide during decomposition.
Three natural processes cause the cycling of oxygen and carbon dioxide in aquatic ecosystems:
- photosynthesis
- cellular respiration
- decomposition
|
