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.
-Urine is made by the kidneys; it's transported from the kidneys to the bladder by the ureters; the bladder stores the urine then the urine leaves the bladder and exits the body via the urethra.-95% of urine is water. Also present is urea, which is produced in the liver (urea is the excretion form of nitrogen waste).Urine is made by the kidneys; it's transported from the kidneys to the bladder by the ureters; the bladder stores the urine then the urine leaves the bladder and exits the body via the urethra.