Preencha os espaços em branco para completar o texto.
Fill in the blanks to describe the classifications of epithelial tissues by the shape of their cells.
epithelium has cells wider than their height that often provide a protective layer.
epithelium has cells with approximately the same width and height that are often found in the glands.
epithelium has cells with a greater height than their width that are specialised for absorption and secretion.