Sugar 101. Naturally occurring sugars and added sugars. There are two types of sugars in American diets: naturally occurring sugars and added sugars. Naturally occurring sugars are found naturally in foods such as fruit (fructose) and milk (lactose).
Epidermis, in zoology, protective outermost portion of the skin. There are two layers of epidermis, the living basal layer, which is next to the dermis, and the external stratum corneum, or horny layer, which is composed of dead, keratin-filled cells that have migrated outward from the basal layer. The melanocytes, responsible for skin colour, are found in the basal cells.
The body wall consists of a thin cuticle, an epidermis consisting  of a single layer of cells, a thick dermis formed of connective  tissue and a thin coelomic myoepithelial â¦layer, which provides the  longitudinal and circular musculature. The dermis contains an  endoskeleton of calcium carbonate components known as ossicles.