Often: Infectious disease, oils ( there is air or skin exposure to oils or other cutting fluids ), hazards ( includes a variety of physical conditions, such as proximity to moving mechanical parts, moving vehicles, electrical current, working on scaffolding and high places, or exposure to chemicals ).Seldom: Exposure to animals. Bachelor's degree in biology, chemistry, or other scientific disciplines in a related field or equivalency (one year of education can be substituted for two years of related work experience) required; knowledge of complex laboratory techniques, equipment, terminology, materials and substances.