Answer: A tissue is classified as a cluster of cells that work together to perform a particular task and are structurally similar. In multicellular species, the use of tissues provides structural and mechanical strength and enables division of labour.

Why do multicellular organisms have tissues?

Within multicellular organisms, tissues are organized communities of cells that work together to carry out a specific function. The exact role of a tissue in an organism depends on what types of cells it contains.

Are tissues multicellular organisms?

Tissue, in physiology, a level of organization in multicellular organisms; it consists of a group of structurally and functionally similar cells and their intercellular material. ... Even among the simplest multicellular species, such as sponges, tissues are lacking or are poorly differentiated.