Paul Ehrlich is considered as the father of chemotherapy.Is he the same person who proposed Rivet Popper Hypothesis? Share with your friends Share 0 Meghana answered this yes 0 View Full Answer Kavya answered this Are you sure?Plz give me evidence. 0 Kavya answered this I finally find out the answer.They are different personalities.Paul Ehrlich who is regarded as father of chemotherapy is German and Paul Ehrlich ,ecologist who proposed Rivet Popper Hypothesis is an American. 0 Varsha Mittal answered this yes both r same 0