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.
All honey bee eggs hatch into larvae three days after they have been laid by the queen. The larval and pupal times differ, so an adult worker emerges 21 days after the egg was laid; a drone (male) after 24 days; and a new queen after 16 days.