She is the only reproductive bee, the rest are workers that have various “jobs” to support the colony. I don’t know how a new queen is chosen in the event of the old queens death.
Bees are fantastic. I have a 3 yr. old hive/colony that lives in a giant oak tree hollow in my yard. I give them showers in the summer with my garden hose. They love it! I mist all the branches in the tree around their hive and they also drink from a birdbath in my yard. :-)