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.
There are fewer bees in the colony than there were during the summer â the honey bee queen, and perhaps 10,000 to 20,000 workers, all huddled together to keep warm. There are no drones â they got the elbow at the end of summer, in order to conserve food resources!