1. pathogen-any disease-producing agent (especially a virus or bacterium or other microorganism). microorganism, micro-organism-any organism of microscopic size.infectious agent, infective agent-an agent capable of producing infection. Translations.. pathogen-any disease-producing agent (especially a virus or bacterium or other microorganism). microorganism, micro-organism-any organism of microscopic size.
Agricultural Tools. The Agricultural Tools ClipArt gallery offers 195 illustrations of hand tools such as plows, pitchforks, insecticide sprayers, rakes, and rollers.
Learn about the training, job duties, and requirements to see if this is the right career for you. When farm machinery breaks down, agricultural mechanics are the ones to respond. They use diagnostic tools and their knowledge of equipment systems to diagnose and repair machines, as well as perform general maintenance.