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.
At this point, the propolis is unloaded and used to patch up holes in the hive. Bees also use propolis as an antiseptic barrier covering invaders with the sticky substance to prevent hive contamination. Propolis As A Natural Antiseptic. Humans have been using this as an antiseptic since the times of ancient Egypt.