Question

which scientist developed the idea that microorganisms can cause diseases? paul ehrlich anton van leeuwenhoek louis pasteur alexander fleming

Explanation:

• Paul Ehrlich is known for his work on chemotherapy and the concept of the magic bullet.
• Anton van Leeuwenhoek is famous for being the first to observe microorganisms under a microscope.
• Louis Pasteur's germ theory proposed that microorganisms can cause diseases.
• Alexander Fleming discovered penicillin.

Answer:

Louis Pasteur