Others servers with bungeecord need their own ram or not?

If you make more servers using bungee cord will it depend on BungeeCord ram or does it need its own ram?

If other servers using BungeeCord need their own ram. What will the ram i provided on BungeeCord be used to?

Just asking so i can give my Lobby and Bungee less amount of ram if that's the case.