The mismatched pair is OC. Fleming - system of scientific nomenclature. Other pairs showcase significant contributions to microbiology.
In the given pairs, the mismatched pair is OC. Fleming - system of scientific nomenclature. Alexander Fleming is best known for his discovery of penicillin, the world's first antibiotic, which greatly impacted medicine but is not related to scientific nomenclature.
On the other hand, the other pairs demonstrate accurate connections between scientists/physicians and their contributions to microbiology. For instance, Jenner's work on vaccination against smallpox and Pasteur's proof of the biogenesis hypothesis are well-known contributions in the field.
https://brainly.com/question/41468963