Scleroderma is not a single disease, but a set of related disorders involving a similar set of symptoms. This makes a concise definition â and diagnosis â difficult. All forms of scleroderma do, however, share the basic characteristics of fibrosis (an excessive accumulation of tissue) and inflammation.
Urea (NH2)2CO is a chemical that comes from the breakdown of proteins. It is the main source of Nitrogen in urine and is excreted by the body as a waste product from your kidn â¦ eys.   Urea is a readily available source of Nitrogen so is used as a fertilizer and sometimes as a supplement to feed for stock.  . 60 people found this useful.t is the main source of Nitrogen in urine and is excreted by the body as a waste product from your kidn â¦ eys.   Urea is a readily available source of Nitrogen so is used as a fertilizer and sometimes as a supplement to feed for stock.   . 60 people found this useful.
Birds produce uric acid, instead. Urea is a waste product of protein metabolism. It is dumped into the blood, then separated out by the kidneys. It is the characterisitc protein of urine, discovered by someone taking a hard look at urine, and therefore named after urine. 100 years ago, urine was the source of urea. called Almay cosmetics and the lady told me their urea is synthetic. In fact, all of their makeup is vegan (stearic stuff, amino acids and glycerins are all from plants), except for the products with carmine (eyeshadows and lip products). The do not test on animals either.