A mucous membrane or mucosa (plural, mucosae or mucosas; Latin tunica mucosa) is a lining of mostly endodermal origin.f the lining is torn or broken, mucus is incapable of performing its roles of preventing infection and retaining tissue moisture levels. In the female, the glans clitoridis and the clitoral hood have mucous membranes.
The cucumber you refer to as regular is the most common field-grown variety. Known as a slicing cucumber, it ranges in size from 6 to 9 inches, and its dark-green skin is usually waxed to prevent moisture loss. The English cucumber, which may be called seedless, European, burpless, or hothouse (which is where it is commercially grown), grows to between 1 and 2 feet in length. Slimmer and smooth-skinned, it is wrapped in plastic and can cost as much as $2 per cucumber.
Cucumber and squash seedlings both have elongated foliage for the first set of leaves after they emerge from the soil. The second set of leaves on a seedling varies. Cucumber leaves are in the shape of a triangle and are flat in the center and rough to the touch. Squash plants vary in shape as to the particular variety, but have three to five lobes and are larger than cucumber leaves. Zucchini squash has elongated serrated leaves.