Term
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Definition
| substances such as water carbon nitrogen calcium and phosphorus each oass between the living and nonliving |
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Term
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Definition
| water in the soil or in underground formations of porous rock |
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Term
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Definition
| the movement of water between these various reservoirs |
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Term
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Definition
| the process in which water evaporates from the leaves of plants in terrestrial ecosystems |
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Term
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Definition
| photosynthesis and cellular respiration from the basis of the shortterm carbon cycle |
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Term
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Definition
| the complex pathway that nitrogen follows in an ecosystem |
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Term
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Definition
| converting N2 gas to nitrate |
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Term
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Definition
| transform gas into a usable form |
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Term
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Definition
| when decomposers break down these material and release the nitrogen they contain as ammonia NH3 which in soil becomes ammonium NH4+ |
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Term
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Definition
| soil bacteria take up ammonium and oxidize it into nitrites NO2- and nitrates NO3- |
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Term
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Definition
| when nitrogen is returned to the atmosphere |
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Term
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Definition
| movemet of phosphorus from the environment to organisms and then back to the environment |
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