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.
Human body has two kidneys, which are the prime organs of the urinary system and function to excrete most of the waste products of metabolism. The waste products are formed into urine, which leaves the kidney by passing down the ureters to the urinary bladder, from where it is expelled out of the body through urethra.he waste products are formed into urine, which leaves the kidney by passing down the ureters to the urinary bladder, from where it is expelled out of the body through urethra.