A single layer of tall, thin cells. These large cells contain organelles that enable them to perform complex functions. In the intestines, it produces and secretes mucus and digestive enzymes. These often have cilia and microvilli on the surface. nonciliated simple columnar epithelium single layer of nonciliated column-like cells with nuclei near base of cells; contains goblet cells and cells with microvilli in some locations; function in secretion and absorption
Definition of copper. 1  any of various small butterflies of the family Lycaenidae having copper colored wings. 2  a reddish brown the color of polished copper. 3  uncomplimentary terms for a policeman.  a copper penny.
Copper-the Metal We Can't Live Without. Long known as essential for general health, copper may also prevent serious infections and disease, according to new studies. It's easy to take copper for granted. It's just another metal, even if it does have some unexpected and interesting attributes. Copper is what pennies, rooftops and the Statue of Liberty are made of. It has become so valuable that junkyards are paying porterhouse prices for scrap.