49/50 US states (Nebraska is the 1/50) have bicameral legislatures with a house and a senate. These are obviously modeled off the federal government but I believe for states they serve no purpose.

In the federal government house representation is proportional to population but senate representation is fixed with two per state. In state governments (as far as I'm aware, I didn't verify for all 50 states) this isn't the case and both the house and senate are proportionate, the districts are just broken up differently. State senates are often smaller and sometimes serve for a longer term.

In any case, the differences between state houses and senates seem almost entirely superfluous.…