Original photographs by Ansel Adams are defined as photographs printed by Ansel Adams from the negatives he made (photographed and developed). Most will range between $4,000 and $70,000.
Keratosis is the term for any condition that is a benign overgrowth  and thickening of the epidermis.
Constant exposure of the skin to friction simulates the formation of a callus, which is the thickening of the _____of the epidermis Stratum corneum This layer of the skin is composed mainly of dense irregular tissue containing collagen and elastic fibers.