Multicellular organisms need many different types of cells to carry out of the same life processes.
Step-by-step explanation:
Each of these special cells has a different structure that helps the cells to perform their works in the body. Cell differentiation is the process by which the cells become specialized to perform the different functions.
This method occurs through the gene expression. It is the specific combination of the gene that is turned into the body. So the cell specialization is based on the cell differentiation.