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.
More in Holistic Health. Propolis is a resinous substance that bees collect from tree buds. Rich in flavonoids (a class of antioxidants, propolis has a long history of use as a natural treatment for a host of health problems. Found in small quantities in honey, propolis is widely available in supplement form.