The interesting fact of the collecting bee

In one bee hive there is only one queen bee and has 3 members that is seeker bee, nurse bee, and collecting bee, and uniquely all this is done by female bees. While the male bees only as a tool to fertilize the queen bee only, after which the bees will die. The interesting fact of the collecting bee is that they will collect the nectar of the same kind of flower in one round.