Biologists conduct studies of the structure and characteristics of humans, plants and animals.
They conduct environmental assessment studies, classify plant and animal specimens and carry out basic and applied research. Microbiologists and cell and molecular biologists research such areas as bacteria, fungi, viruses, tissues, cells, pharmaceuticals and plant and animal toxins. Forestry professionals research, plan, administer and direct forestry management and harvesting programs. They conduct forestry education and extension programs and act as consultants on forestry issues. Agricultural representatives, consultants and specialists provide information and advice regarding nutrition to companies, government and the public.