HELPPP WHAT ARE Three ways nitrogen can be fixed or transformed for animals and plants to use

Thus, nitrogen undergoes many different transformations in the ecosystem, changing from one form to another as organisms use it for growth and, in some cases, energy. The major transformations of nitrogen are nitrogen fixation, nitrification, denitrification, anammox, and ammonification

Explanation:

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the answer will be a) proteins i believe

the scientific method.