| Term | Definition |
|---|
| evaporation | the process through which water enters the environment through non-living sources |
| precipitation | how does water return to land through teh atchmosphere |
| Respiration | the ways carbon dioxide enters the atmosphere |
| N2 | Nitrogen Gas |
| NH3 | ammonia |
| NO-3 | Nitrate Ions |
| NO2 | Nitrite ions |
| denitrification | The process through which carbon dioxide returns to teh atmosphere |
| Nitrogen Fixation | The process of bacteria converting N2 to NH3 |
| NO3-, NO2- | Small aquatic plants take up which types of nitrogen |
| N2, NO3-, NO2- | Land plants take up which type of nitrogen |
| plants | which is a major source of phosphorous in land organisms? |
| eroded rocks | what is a major source of phosphorous for oceanic creatures |
| absorbing sediments | how do land plants aquire the phosphorous they need? |
| retinol | vitamin A, skin cell growth, dairy products, vegetables |
| tocopherol | vitamin E, green vegetibles, antioxident |
| calcifrol | vitamin D, fish oils and eggs, promotes bone growth |
| vitamin K | green leafy vegetables |
| Thiamine | metabolism, B1 |
| niacin | energy |
| pyridoxine | B6, amino acids |
| cyanocobalamin | B12, enzymes, red blood cells |
| Biotin | synthesis of fat |
| ascorbic acid | C, cartilage and bone |
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