Queue created in MS CRM 2011

how the Queues created in MS CRM 2011, automatically....
if you created any BU, any user or any Team in the CRM system, then a Queue will be get created in the CRM system in the same name of the BU, User or Team automatically....
so initially we must have 2 queues in the name of the Admin and name of the Organisation we are creating.....

but how when we create a bu and same time a team also get created, so this point of time it will not create one queue for the BU and one for the team...

hope its bit clear.... :)

thanks,
yes.sudhanshu