Creatinine is a toxin produced during the metabolism of meat in our body. Therefore, people with lots of muscles or who eat lots of meat always have a relatively high creatinine level, but it usually fluctuates in the normal range: 0.5-1.3mg/dL.
comet definition An object that enters the inner solar system, typically in a very elongated orbit around the sun. Material is boiled off from the comet by the heat of the sun, so that a characteristic tail is formed.
These comets come from a much more distant region of the solar system-the Oort cloud. This theoretical sphere of comets and other icy bodies is thought to extend nearly a light-year away from the Sun; reaching nearly a quarter of the way to our Sun's nearest neighbor: Proxima Centauri.enerally, comets are broken up into two categories based on their origin. Short period comets, with long period comets being the other, come from a region of the solar system known as the Kuiper belt.