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.
Build a Comet Comets are made of ice, gases, rock, dust and organic material. The nucleus is the solid center of the comet and contains ice, gases, dust & rocks, and organic material. The coma surrounds the nucleus and contains gas and dust. It is the âatmosphereâ of the comet.