Endosymbiosis occurs when a symbiont lives inside the body or the cells of another organism. It is a very widespread phenomenon in living things. Examples are: Rhizobia: nitrogen-fixing bacteria which live in root nodules on plants of the pea family.
Aviation ordnancemen are a close-knit community and one of the few ratings in the U.S. Navy to have their own association, the Association of Aviation Ordnancemen. In addition, the aviation ordnanceman slogan is IYAOYAS, meaning: If you ain't ordnance, you ain't shit.. One of the most notable aviation ordnancemen was Lieutenant John Finn, who came up as an enlisted sailor making it to the rank of chief petty officer.
Aircraft. A device that is used or intended to be used for flight in the air. Aircraft Category. The term âcategory,â as used with respect to the certification of aircraft, means a grouping of aircraft based on their intended use or operating limitations, for example, normal, utility, acrobatic, or primary.AA Definitions begining with the letter B. Balloon. A lighter-than-air aircraft that is not engine driven, and that sustains flight through the use of either gas buoyancy or an airborne heater. Bilateral Agreement.