Question

how did louis pasteurs experiments lead to new scientific understandings of germs? experiments with cooking food showed that disease - carrying germs in food could be killed when heated. experiments with different magnification lenses showed that germs were real and could be observed. experiments with animals showed that dominant genes could lead to risks of disease. experiments with shallow dishes showed that groups of germs could be grown so they could be seen without microscopes.

Explanation:

Louis Pasteur's pasteurization experiments on food heating demonstrated that heat could eliminate disease - causing germs, advancing germ theory understanding. His work focused on the impact of heat on food - borne germs rather than the other options presented.

Answer:

A. Experiments with cooking food showed that disease - carrying germs in food could be killed when heated.