Appraisals and Seller Concessions ... FHA Takes Note. In the summer edition of the Federal Housing Administration (FHA) Appraiser Newsletter, the FHA re-emphasizes the importance of appraisers correctly documenting any seller concessions on a property sale.
The outer layer (tunica adventitia) consists chiefly of connective tissue and is the thickest layer of the vein. As in arteries, there are tiny vessels called vasa vasorum that supply blood to the walls of the veins and other minute vessels that carry blood away.
There are even differences in the epidermis on the underside and upper side of a leaf. Usually, the outer walls of the epidermal cells are thickened for protection, and they may be covered with a waxy, waterproof coating called a cuticle. The cuticle prevents the plant from losing too much moisture, which is why you tend to see waxy plants in desert environments. The leaves of the desert creosote bush are covered with a waxy cuticle. In reality, The epidermal layer of a leaf does not completely seal the surface.