Which federal level of government has representatives elected to serve on a 2-year term?

The House of Representatives is the correct answer because it consists of members who are elected to serve for a term of two years. This short term length is designed to keep representatives closely connected to their constituents and responsive to the changing needs and opinions of the electorate.

In contrast, the Senate comprises members who serve six-year terms, which allows for a more stable legislative body that can focus on longer-term legislation and issues. The Supreme Court justices are appointed for life, which is intended to insulate them from political pressures and ensure an independent judiciary. The President's Cabinet consists of individuals appointed by the President and does not involve any elections; their tenure can vary depending on the President’s discretion and policies.

Therefore, the unique two-year term of representatives in the House is a key feature of this legislative body, distinguishing it from other federal components.