[Solved] What is the difference between hubs,switches,and routers? Microorganism: A microscopic living body not perceivable by the naked eye. Microscopic: Extremely small and detailed, visible only with the aid of a microscope. Living Body: An organism's bodily form that is alive, encompassing all biological functions such as metabolism, growth, and response to stimuli. Aseptic Technique: A set of practices used to prevent contamination from pathogens to protect the patient from infection.