It is used as a national identification number, tax payer number, social insurance number,driver's license number, for employment, etc. It is also commonly used as a customer number in banks, retailers, insurance companies, airlines, etc. Until the end of August 2013, the RUN was also used as the passport number.
The sclerenchyma cells are usually elongated, with tapering ends. Such cells are commonly described as sclerenchyma fibres. In some cases, the cells are shorter and irregular in shape. Such cells are commonly described as sclereids or stone cells.
Scleroderma is a group of diseases that affect connective tissue in the body. This tissue supports your skin and internal organs. Scleroderma involves tissue that gets hard or thick. It can also cause swelling or pain in the muscles and joints. Some types of scleroderma lead to hard, tight skin.