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.
In Denver, the lifespan is about 12 years for a gas fired heater. To learn how to make them last longer, follow the tips at. Hot water heater troubleshooting, smelly water solutions, preventive maintenance. Views.