human organization 1. Cell: the basic structure of human cell 2.Tissue: consists of cells and intercellular substance 3.Organ: consists of different tissues which have related function 4.System: consists of different organs which have related function1.Cell: the basic structure of human cell 2.Tissue: consists of cells and intercellular substance 3.Organ: consists of different tissues which have related function 4.System: consists of different organs which have related function Human organization