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...Department of biological sciences university medical ondo city state nigeria course bio general biology on ecology dr mrs oluwafemi yinka doris the term was introduced by german biologist ernst heinrich haeckel in it is derived from greek oikos household and ology study sharing same root word as economics thus implies economy nature modern part began with charles darwin developing his theory evolution stressed adaptation organisms to their environment through natural selection also making important contributions were plant geographers such alexander von humboldt who deeply interested how why vegetational distribution around world definitions heackle we mean body knowledge concerning investigation total relations animals its inorganic organic burdon sanderson s elevated one three divisions physiology morphology elton scientific history andrewartha abundance odum structure function generally processes regulating interactions among them these turn mediate transport transformation energy m...