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 composting toilet is a miniature ecosystem designed to recycle human excrement safely by containing it while microorganisms convert it to humus. Returning that humus to the soil is one important ecological benefit.Another benefit of composting toilets is that they use little or no water.By comparison, a normal toilet adds up to 5 gallons of pure drinking water to an ounce or so of waste so it can be flushed into an expensive septic or sewer system, where it is treated.nother benefit of composting toilets is that they use little or no water. By comparison, a normal toilet adds up to 5 gallons of pure drinking water to an ounce or so of waste so it can be flushed into an expensive septic or sewer system, where it is treated.