What does the term "bicameral" refer to?

The term "bicameral" specifically refers to a legislature that consists of two separate chambers or houses. In the context of the United States, this is exemplified by Congress, which is divided into the Senate and the House of Representatives. This structure allows for a system of checks and balances within the legislative process, as both chambers must collaborate and agree on legislation before it becomes law. Each house can provide distinct representation and viewpoints, contributing to a more comprehensive legislative dialogue. This is a crucial feature of many democratic governments, promoting thorough examination and debate of proposed laws.

The other choices describe different legislative structures or processes that do not align with the definition of "bicameral." For instance, the notion of a unicameral legislature directly contradicts the bicameral concept by describing a system with only one house.