1. Weismann - Theory of continuity of germplasm
2. Pasteur -- Inheritance of acquired characters
3. de Vries -- Natural selection
4. Mendel -- Theory of pangenesis
Which one of the following experiments suggests that the simplest living organisms could not have originated spontaneously from non-living matter:
| 1. | Larva could appear in decaying organic matter |
| 2. | The meat was not spoiled when heated and kept sealed in a vessel |
| 3. | microbes did not appear in stored meat |
| 4. | Microbes appeared from unsterilized organic matter |