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1 This cycling is defined as the movement and conversion of nutrientsfrom inorganic to organic by biochemical function in the ecosystem Mostof all the life body needs to survive and is made by sulfurphosphorous carbon oxygen hydrogen and nitrogen Moreover severalelements are required such as zinc manganese chlorine iron andcopper The biogeochemical cycling helps to recycle nutrients Thebiogeochemical cycling may take two forms One of the forms is made fromsedimentary from soil or rocks and another form is gaseous from air orwater If the dead animals feed in the soil it may be sedimentary andbegin the sedimentary cycle which cycles such as a phosphorous cycleTheir bodies decomposed by a decomposer such as insects bacteriafungi and protozoans and that sequentially break down their bodycomplex organic materials into low-energy mineral nutrients thatlow-energy mineral nutrients may be used by plants Other life animalstake the plants that may use the energy and change the energy mineralnutrients to their needs mineral nutrients form to live themselves2 For a simple example suppose some grass a grasshopper a frog anda snake are here together We called these trophic levels because eachspecies is located a step ahead in the food chain In the above foodchain the grass is a producer the grasshopper is a primary consumer asecondary consumer is a frog and the tertiary consumer final consumeris a snake3 There are two major natural mechanisms for converting atmosphericnitrogen to useable forms fixation The first method of conversion ofatmospheric nitrogen to nitrates involves bacteria such as Rhixobiumsp which live symbiotically in the root nodules of leguminous plantsor some species of organobacteria may convert gaseous atmosphericnitrogen to nitrates Second the natural conversion can occur bylightning The lightning may cause atmospheric nitrogen to react withoxygen to form nitrates in a series of steps4 Biomes are divided to exist by the climax vegetation or animalscommunity depending on weather conditions Each plant and animal isadapted to the environment and the rocks soil or woods
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