Answer: In the atmosphere, nitrogen exists as a gas (N2), but in the soils it exists as nitrogen oxide, NO, and nitrogen dioxide, NO2, and when used as a fertilizer, can be found in other forms, such as ammonia, NH3, which can be processed even further into a different fertilizer, ammonium nitrate, or NH4NO3.
Explanation:
We need carrier proteins for steroid hormones because they help in the transportation from the cell they were released from to their target cell.
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Answer:
The answer is Physical. Physical immunity occurs when a person immune system responds to antigen.
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Answer:
C.
Explanation:
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Answer:
A substantial part of the Amazon rainforest economy comes from illegal activities, like drug dealing, biological trade and wood cutting. Most drugs that reach Europe and United States are not farmed in the region, but Amazon rainforest serves as a path to drug dealers to deliver their production
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