Complex sentence: Ridings are based on population, but each territory is also given an MP; so Nunavut receives one MP even though its population in 2006 was only 29,474.
Split into simpler sentences: Ridings are based on population, but each territory is also given a seat in parliament. The territory of Nunavut receives one seat in Parliament, even though its population in 2006 was only 29,474.