Mollusks create mother of pearl to protect themselves. In addition to forming part of the shell, it also insulates mollusks from bacterial infection and parasites. Another function of this substance is to reduce irritation or damage from material such as sand or grit that drifts into the shell.
The Ring of Honor is an American professional wrestling event that showcases five main events annually, and a number of internet pay-per-view live events. Most of the events may be purchased and viewed in DVD.
The Order of the Arrow (OA) is most commonly known as the National Honor Society of the Boy Scouts of America (BSA). A more clear definition would be that the society was created to honor Scouts that best exemplify the Scout Oath and Law. It uses American Indian-styled traditions and ceremonies to bestow recognition on Scouts selected by their peers as best exemplifying the ideals of Scouting.