The tissue is the Epidermis.
Epidermis is a tissue, which is a group of cells that work together to perform a specific function. In this case, the epidermis is a tissue that covers the surface of the body and protects it from damage and dehydration. It is found in animals, including humans, and is made up of several layers of cells. The other options, Volvox, Chlamydomonas, and Paramecium, are organisms, but they do not qualify as tissues because they are made up of only one or a few cells that perform all necessary functions.