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.
Propolis is a sticky, gummy and resinous material collected by honey bees from buds and the bark of trees and shrubs. The bees use this material to fill cracks, reduce openings to their hive and coat the entire inside to help protect it from disease.