What is the utility of tissues in muticellular organsims ?

Explanation

In multicellular organism there are millions of cells. Most of these cells are specialised to carry out a few functions . Each specialized function is taken up by a different group of cells or tissues. Since these cells of a tissue carry out only a particular function, they do it very efficiently. For example, in human beings, muscle cells contract and relax to cause movement, nerve cells carry messages and blood flows to transport oxgyen, food, hormones and waste materials and so on. Likewise, in plants, vascular tissues (xylem, phloem) conduct water and food from one part of the plant to other parts. So, multicellular organisms show division of labour.