Dieticians study the nutritional needs of the human body and design meals for individuals or groups of people. A dietician may work in a specific field like sports, entertainment, weight management or community health. Prosthetists, with the help of computers and new technology, design artificial body parts and cosmetic devices. Orthotists design braces to support weak joints or muscles or to correct deformities. Orthotics Technicians and Prosthetics Technicians make models of patients' limbs and other affected areas and make, fit and repair prosthetic and orthotic devices.
Trainers help athletes maintain their bodies or work toward a specific goal.
Agricultural Engineers are involved in designing agricultural machines and equipment and supervising their production, developing plans for farm buildings, power stations and irrigation and drainage systems, working on soil and erosion projects or genetic experiments to enhance crop or livestock production. Agricultural Scientists study how plants and animals respond to their environment and use the results of these studies to improve the quality of plants, animals, foods and drugs. Horticulturists attempt to improve the growth, size, and resistance to disease of flowers, vegetables, fruits and nuts by producing better genetic strains of plants. Soil Scientists analyze and determine the best methods of managing soil to prevent erosion or nutrient depletion. Entomologists study the characteristics and behavior of insects.