Number of tiers
Nigeria
Answer
1
Source
Constitution, 1999, http://web.parliament.go.th/parcy/sapa_db/cons_doc/constitutions/data/Nigeria/Constitution%20of%20the%20Federal%20Republic%20of%20Nigeria.htm#Composition_and_Staff_National_Assembly
Comment
49. Subject to the provisions of this Constitution,the House of Representatives shall consist of three hundred and sixty membersrepresenting constituencies of nearly equal population as far as possible,provided that no constituency shall fall within more than one State.