1. There is strong evidence that the retinal ganglion cell theory is untenable. 2. Cell theory provided a new perspective on the fundamental basis of life.3. His name is especially known for his work on the cell theory . 4. While cell theory and germ theory gained widespread acceptance, granular theories became obscure. 5. Once this tenet was added, the classical cell theory was complete. 6. All basic principles I see are considered theories, like Cell theory . 7. Despite these beliefs, Braun made important contributions in the field of cell theory . 8. In 1855, Rudolf Virchow added the third tenet to cell theory . 9. Cell theory is explored by analyzing letters and a stamp.10. Cell theory led biologists to re-envision individual organisms as interdependent assemblages of individual cells.