Robert Koch Contributed to the Field of Microbiology by Being

Multiple Choice

Robert Koch contributed to the field of microbiology by being the first person to

A) develop the tuberculin test.
B) formulate four postulates for definitively linking a specific microorganism to a specific disease.
C) use agar as a solidifying agent in growth media.
D) develop the tuberculin test, formulate four postulates for definitively linking a specific microorganism to a specific disease, and use agar as a solidifying agent in growth media.