Some metropolitan areas contain metropolitan divisions. Two metropolitan divisions exist within the DallasâFort WorthâArlington MSA. The term metropolitan division is used to refer to a county or group of counties within a metropolitan area that has a population core of at least 2.5 million.
The bees carry the propolis back to their hives and mix it with their salivary secretions and wax flakes. Propolis contains 55% resins and balsams, 30% beeswax, 10% etheric oils, and 5% pollen.
Origins, Composition, Expert opinions, Combination with medicinal plants and other bee products, and more information on Propolis. Propolis is one of the most powerful natural shields there is. It comes from bees, which use it for sealing cracks, sanitizing, reinforcing and protecting the hive. An excellent natural antibiotic, it can be of great help in preventing infections, and is unparalleled in its protection of the immune system.