Relacionar Columnas 4.4 Cell TheoryVersión en línea History and Basic concepts of cell theory por Jorge Arizpe 1 Postulate 2 The cell is the structural unit and the _______ 2 He was the first scientist to observe live microorganisms. 3 Postulate 1: All the organisms ..... 4 Postulate 3: All cells come from ________ 5 Scientist who observed cells in cork for the first time. He calls them celle. 6 I conclude after studying plant tissues that all plants are made up of cells. 7 He said that all animal tissues are composed of cells 8 He said that all cells are produced by dividing existing cells.