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...Unit ecology and ecosystem structure introduction objectives definition history of subdivisions relationship with other disciplines biology environment external internal natural versus artificial man made population community types growth form components size i biosphere summary terminal questions answers you have already been introduced to the concepts energy flow nutrient cycling in foundation course on science technology as are aware is scientific study reciprocal between organisms including microbes plants animals well their it deals ways which moulded by how they make use environmental resources mineral everything that surrounds or affects an organism during its life time collectively known comprises both living biotic nonliving abiotic extinction many plant animal species pollution explosion some major ecological problems affecting balance nature a global scale order manage earth support systems thus imperative understand processes this first we will begin briefly explaining basi...