A "Single-Chamber" refers to a legislative body that consists of only one chamber or house. This structure allows for a more streamlined decision-making process, as all members work together in a single assembly to propose, debate, and vote on laws. Countries like New Zealand and Sweden utilize this system, which can lead to quicker legislative action compared to bicameral systems. In a single-chamber system, the representatives are typically elected directly by the public, ensuring that the legislative body reflects the electorate's preferences. This format can enhance accountability, as citizens can more easily track the actions of their elected officials within one chamber.