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simple epithelium with cuboidal shaped cells that lines various glands with a secretory function, for example in salivary glands.
a rubbery, protein-carbohydrate complex that forms the matrix of cartilage.
the muscular tube of the mammalian digestive tract that links the mouth to the stomach.
a method of ordering the age of different fossils, relative to each other, without working out...
a chemical used as an antiseptic to prevent bacterial and fungal growth.
can be broken down, in a reasonable amount of time, into its base compounds by micro-organisms...