What type of legislature consists of two law-making groups?

A bicameral legislature is one that is divided into two separate chambers or groups responsible for making laws. This structure is often used to allow for a system of checks and balances within the legislative process, where different perspectives and interests can be represented and debated. In the United States, for instance, Congress is a bicameral legislature, consisting of the House of Representatives and the Senate. This design facilitates thorough discussion and consideration of legislation, as bills must pass through both chambers before becoming law. The other options refer to legislative structures that are either composed of one chamber (unicameral), three chambers (tricameral), or more than two chambers (multi-cameral), which are less common and serve different political or administrative purposes.