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Microscopes.
Microscopes.
B, Quantum Theory!
190 years passed between the discovery of cells and when the third cell theory was added.
Instead of just stating his own personal opinions John Dalton cited evidence to support his atomic theory. The giving of evidence - which could be proved or disproved by others - was what soon resulted in his theory being accepted by scientists.
Microscopes.
Microscopes.
seeing cells through microscopes.
Microscopes.
150 years, after microscopes were invented.
The scientists with the assistance of the microscopes that were invented in the 16th century AD/ CE found out the microbes or microorganisms And the existence of cells, and cell theory, for one....
Quantom theory
schleidon, virchow, and schwann
Quantum Theory
B, Quantum Theory!
Zeiss was active in improving the design and manufacture of microscopes, in advancing the theory of lenses and in creating new types of lens glasses. For more about him you might see his wikipedia article.
190 years passed between the discovery of cells and when the third cell theory was added.