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.
the soft internal organs of the body, especially those contained within abdominal and thoracic cavities. serous membrane. a simple squamous lining found in the carious ventral body cavities which lines the walls off the cavities and the organs contained there in which produces a watery fluid which lubricates...pleura. simple squamous lining found in the carious ventral body cavities which lines the walls off the cavities and the organs contained there in which produces a watery fluid which lubricates... pleura.