Studies the basic principles of plant and animal life and the effects of varying environmental and physical conditions such as radioactivity or pollution. Studies reactions of plants, animals, and marine species to parasites, bacteria, pharmaceuticals and chemicals. Requires a bachelor's degree and 2-4 years of experience in the field or in a related area. Familiar with standard concepts, practices, and procedures within a particular field. Relies on limited experience and judgment to plan and accomplish goals. Performs a variety of tasks. Works under general supervision. A certain degree of creativity and latitude is required. Typically reports to a supervisor or manager.