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This lecture series contains animal behavior, cereal, earthworm, fossils, growing plants, living factories, lower plant, mammals, natural vegetation, plant division and sharks. This lecture covers: Nitrogen, Animal, Protein, Plant, Urine, Faeces, Ammonia, Bacteria, Nitrites, Nitrates, Root, Nosules
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Nitrogen in the air animal protein dead plants & animals urine & faeces ammonia
plant made protein decomposition by bacteria & fungi
root nodules (containing nitrogen fixing bacteria) nitrogen fixing plant eg pea, clover
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Roots of a legume plant (peas, beans and clover).
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