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.
Another bee product is the bee pollen. Bee pollen is a rich source of amino acids and vitamin B12, and it is widely reported to improve endurance, promote longevity, aid recovery from chronic illness, and help prevent disease.ropolis is sometimes called the âbee glueâ because bees collect the sap of polar buds and the resin of coniferous trees, mix it with enzymes, beeswax, and pollen and to use to repair cracks in the hive. Some physicians and veterinarians believe propolis has a stimulating effect on the thymus gland.