Does the US have a bicameral legislative branch?

.

The Arizona Legislature is a "bicameral system." A bicameral system is comprised of a "lower house," the House of Representatives, and an "upper house," the Senate. There are 30 Legislative Districts in Arizona, and combined there are 90 legislators (30 Senators and 60 House Members)who meet in Phoenix, at the Capital Complex, to represent the entire state constituency.