Think about it: Why do you think the nursery is at the top of the ant city and the winter room
Answers
The Queen
An ant colony is a home for ants that is usually underground and made up of several chambers connected by tunnels. They are built by the ants themselves; more specifically, the worker ants, who dig the tunnels and rooms, and then, carrying the tiny bits of dirt in their mandibles, they deposit the dirt on the surface, sometimes forming an anthill in the process.
The way an ant colony operates revolves around the function of the chambers, or rooms. Each room has a purpose: there are nurseries, rooms for storing food and even rooms specifically for mating.
An ant colony begins when a queen mates with one or several males. She then creates a nest and raises her first brood, which consists of worker ants. Worker ants are wingless females. Only the queen has wings, which she uses to fly to find a mate. Once she mates, the wings are useless and she uses the tissue to feed her first brood.