In 1909, Western Union and ADT came under the control of American Telephone & Telegraph Company (AT&T). ADT began to expand into new areas, such as fire alarms and security alarms between 1910 and 1930, but was kept separate from AT&T's Holmes alarm business. ADT became a publicly owned company in the 1960s.
It has moist membranes. Many, but not all (urinary), secrete mucous. Serous: Lines open body cavities that are closed to the exterior body surface. composed of simple squamous epithelium resting on thin layer of areolar connective tissue.
A: Stratified squamous epithelium lines the esophagus. Outside the epithelial layer, which is where most cell mitosis in the esophagus occurs, is a layer of loose, slick connective tissue which is home to submucosal glands and other structures important to maintaining the health and structural of the esophagus as it swallows materials.