Labels:cell | earth | sky OCR: EPITHELIAL TISSUE TISSUE covers body and the secretion and excretion surfaces and lines body cavities. su bstances. The epithelial tissue It is made up ot sheets of special that forms the upper layers of the cells that enable to fulfill many skin protects the deeper skin functions. These include protection tissues from injury and infection. Epithelial tissue Section through the skin PITHELIAL protec tion
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