Sertoli cell, Sertoli's cell-elongated cells found in the seminiferous tubules of the testis; apparently they nourish the spermatids. biological science, biology-the science that studies living organisms. plant cell-a cell that is a structural and functional unit of a plant.
The life expectancy of a toilet is more than 100 years. In fact, a study conducted by the National Association of Home Builders determined that toilets can last indefinitely.
The life expectancy of a washing machine directly depends on the nature of usage of the machine. If it is used at home and not a laundry, the frequency of usage will not be too often. In such a case, ideally the machine should last for 12-14 years. Some other factors on which life span depends are.