Actually if you took a biology class in highschool, you would know that cells slow their growth and eventually stop growing. Based on the cell theory, cells arise from other cells after they stop growing. They are the same shape but also keep in mind, there are other kinds of cells. Stop being stupid mr. Guest!!!!!
No they aren't because then everyone would be the same size if they were all the same size and shape......it's not hard just check out a science book about cells if you have more questions or ask your teacher..