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.
Bee Product Science, www.bee-hexagon.net April 2015 6 Propolis against bacteria, fungi, molds and parasites The antimicrobial activity of propolis is by far the most important biological property of propolis, which has deserved the highest scientific interest, considering the high number of performed studies.