Respuesta :
"All cells are produced from existing cells" is the one among the following choices given in the question that was Rudolf Virchow's contribution to our understanding of cells. The correct option among all the options that are given in the question is the fourth option or the last option.
The correct answer is this: ALL CELLS ARE PRODUCED FROM EXISTING CELLS.
Rudolf Virchows was a doctor and scientist of German origin. He was the first scientist to apply cell theory to mechanism of diseases in humans, this aspect of medicine is called pathological processes. Through his research, he discovered that new cells are always produced from existing cells.