The skin consists of two quite different layers: (1) the epidermis, a superficiallayer of stratified epithelium that develops from ectoderm, and (2) the dermis, or corium, an underlying layer of connective tissue that is largely mesodermal in origin. The dermis makes up the bulk of the skin.
Answer by Aadelman. Confidence votes 169. No. A D&B D-U-N-SÂ® Number is a unique, 9-digit business identification number issued by Dun & Bradstreet, while a federal tax id number or EIN is a separate business identification number issued by the IRS.
In addition to DUNS numbers, the FAR also states that excluding agencies should enter an employer identification number (EIN), other taxpayer identification number (TIN), or a Social Security number (SSN), if these numbers are available and disclosure is authorized.