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.
A Running Toilet is a Wasteful Toilet. According to the EPA, an average of 200 gallons of water can be wasted every day by a running toilet. Sometimes you can have a small leak that only wastes about 30 gallons of water a day, however, these leaks are more difficult to detect and therefore can last longer.