Queensland (Aus)- State Administrative structure (The Parliament)

The Queensland Parliament consists of the Queen of Australia (the Sovereign) and the Legislative Assembly. Queensland is the only Australian State to have a unicameral (or single chamber) Parliament. Other States, along with the Federal Parliament, have two chambers of Parliament, commonly referred to as the Upper and Lower Houses.

Queensland did have an Upper House – the Legislative Council – until 1922 when it was abolished.  http://www.parliament.qld.gov.au/

For more information

http://en.wikipedia.org/wiki/Parliament_of_Queensland