1 The primary cause of COPD is tobacco smoke (through tobacco use or second-hand smoke).  The disease now affects men and women almost equally, due in part to increased tobacco use among women in high-income countries.
Swarming is the process by which a new honey bee colony is formed when the queen bee leaves the colony with a large group of worker bees. In the prime swarm, about 60% of the worker bees leave the original hive location with the old queen. This swarm can contain thousands to tens of thousands of bees.
If the drone falls into another hive in the summer, bees take it and in the fall â kill. If a family has drone brood, bees throw it in the fall. If the bees expel the drones, then honey harvest is over, and there is the fetal queen in the hive. In many families, the drones sit on a migratory board, in other families bees go horseback on drones(go droneback))). Bees with no fetal queens do not expel the drones, but even take evicted from other hives.