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.
to provide aviation safety and economic regulation in the most efficient effective quality and technology driven manner to the satisfaction and benefit of all stakeholders consistent with the highest international standards and the sustainable development of the industry and national economy