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.
There are 1440 minutes in a day. I expect the refilling flow rate of a. typical toilet is somewhere around 2-3 gallons a minute with the fill. valve wide open. That'd occur if the flap valve was stuck open so all. the water was going down the drain and the toilet's fill valve never.