Nutrient cycles test for revising nutirent cycles, 3.4.6 3.0 / 5 based on 2 ratings ? BiologyBiological molecules, organic chemistry and biochemistryA2/A-levelAQA Created by: Leah DagworthyCreated on: 15-12-12 13:25 the process of decomposers feeding on dead organic matter saprobiotic nutrition 1 of 5 nitrogen gas in the atmosphere is turned into ammonia by bacteria nitrogen fixation 2 of 5 nitrogen compounds from dead organisms are turned into ammonium compounds by decomposers ammonification 3 of 5 ammonium compounds in the soil are changed into nitrogen compounds which can be used by plants nitrification 4 of 5 nitrates in the soil are converted into nitrogen gas by denifying bacteria denitrification 5 of 5
Exchanges with the external environment of both cells and organisms to maintain their internal environment 0.0 / 5
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