caption: The image shows a poster with a diagram depicting the life cycle of a cell, along with text describing the mechanisms of the immune system. The diagram is composed of several interconnected circles, each representing a different stage of the cell cycle, and arrows connecting them to indicate the direction of the flow of information. The text provides further information about the different stages of the cycle, such as the number of cells in each stage, the type of cell membrane, and the potential for growth and development.