Organisms
Organisms have cells that can organize themselves and form tissues that have specialized functions.
Thus, organisms have many different types of cells to be able to perform all the functions that are necessary for their survival.
It is also worth remembering that all cells have the same genetic material, but they are different because they can activate and inactivate specific parts of this DNA, causing them to become different cells from each other.
Therefore, we can say that there are different types of cells to do different types of jobs.