So cells can bind to one another by using a special type of molecule found on the membrane known as the cell adhesion molecule or CA M. Now, it turns out that morphogens can influence the way that cells attach to other cells by expressing different types of calm molecules on the membrane of those cells. In fact, it turns out that the reason one cell binds to another cell is because they have the same type of Cam molecules. So cells tend to aggregate and form groups because they contain the same exact cell adhesion molecule on the membrane. So we see that cells tend to bind only to those cells that have the same type of cell adhesion molecule. And this means that the Cam molecule can actually influence the formation of different types of groups of cells and that can lead to the formation of different types of tissues. For example, we have these blue cells and we have these purple cells.