Final answer:
An epithelial membrane comprises an epithelium attached to a layer of connective tissue (option b), with functions including protection, absorption, and secretion. It forms structures such as skin and mucous membranes lining various body cavities.
Step-by-step explanation:
An epithelial membrane consists of an epithelium attached to a layer of connective tissue. This arrangement serves various functions including protecting the body, as well as absorption, transport, and secretion. Examples of these membranes include the skin and mucous membranes such as those lining the body cavities like the digestive, respiratory, excretory, and reproductive tracts.
Different types of epithelial membranes are characterized by their structure and functions. Mucous membranes contain glands that produce mucus, which covers the epithelial layer, while the underlying connective tissue, called the lamina propria, provides support. Serous membranes secrete a fluid that allows organs to move smoothly, and cutaneous membranes form the skin.