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.
1 Refrigerator, 13-19 years: The top end of this life expectancy range belongs exclusively to increasingly rare single-door refrigerator units. 2  More common freezer-top and side-by-side models can last 17 and 14 years, respectively. Small repairs to things like failed door gaskets or malfunctioning ice makers are expected, but a broken compressor usually signals the end for a fridge. 2  Washer, 10-14 years, and Dryer, 10-13 years: The life of a laundry machine is completely dependent on how often itâs run.