Determining the relationships between the various eukaryotic groups--the protists, plants, animals, and fungi --has been a difficult problem. Some biologists have even predicted that the phylogeny will never be known. Part of the difficulty is that the splits between many of the lineages of eukaryotes are ancient. Another difficulty is
Easy Box is a UL-approved electrical junction box designed to replace conventional electrical boxes. Easy Box is a UL-approved electrical junction box designed to replace conventional electrical boxes. Comprised of a detachable cover and base for housing standard electrical wiring, the box is child-proof and can be used for various types of wiring, including all common gauges of electrical wire, telephone, cable, and conduit.
âULâ stands for Underwriters Laboratories, Inc. which is an independent product safety certification organization established in Chicago in 1894. Originally known as the Underwriters Electrical Bureau, UL has since expanded to include 182 service centers in more than 70 countries.anufacturers must submit a design layout of the UL mark to a UL label center for review to make sure all required information is acceptable. UL has developed standards and test procedures for products, materials, components, assemblies, tools and equipment, all dealing with product safety.