Microbiologists explore, investigate and discover how these organisms exist - and how they affect our lives. The study molecules - from bacteria and yeast, to plants, amphibians and mammals. Begining with the study of DNA to the study of how different chemicals form together to make cells, and how those cells work together to build large organisms. New York City. A plant pathologist specializes in plant health and requires an understanding of the organisms that cause disease.
Plant Pathologists learn how plants grow and are affected by disease.
Taxonomists study of the kinds of organisms of the past and living today, and of the relationships among these organisms.