<P> The Canadian government consists of the monarch, predominantly represented by his or her governor general, in council, which is a collection of ministers of the Crown appointed by the governor general to direct the use of executive powers . Per the tenets of responsible government, these individuals are almost always drawn from parliament, and are predominantly from the House of Commons, the only body to which ministers are held accountable, typically during Question Period, wherein ministers are obliged to answer questions posed by members of the opposition . Hence, the person who can command the confidence of the lower chamber--usually the leader of the party with the most seats therein--is typically appointed as prime minister . Should that person not hold a seat in the House of Commons, he or she will, by convention, seek election to one at the earliest possible opportunity; frequently, in such situations, a junior Member of Parliament who holds a safe seat will resign to allow the prime minister to run for that riding in a by - election . If no party holds a majority, it is customary for the governor general to summon a minority government or coalition government, depending on which the commons will support . </P> <P> The lower house may attempt to bring down the government by either rejecting a motion of confidence--generally initiated by a minister to reinforce the Cabinet's support in the commons--or by passing a motion of no confidence--introduced by the opposition to display its distrust of the Cabinet . Important bills that form part of the government's agenda will usually be considered matters of confidence; the budget is always a matter of confidence . Where a government has lost the confidence of the House of Commons, the prime minister is obliged to either resign (allowing the governor general to appoint the Leader of the Opposition to the office) or seek the dissolution of parliament and the call of a general election . A precedent, however, was set in 1968, when the government of Lester B. Pearson unexpectedly lost a confidence vote but was allowed to remain in power with the mutual consent of the leaders of the other parties . </P> <P> In practice, the House of Commons' scrutiny of the government is quite weak in comparison to the equivalent chamber in other countries using the Westminster system . With the plurality voting system used in parliamentary elections tending to provide the governing party with a large majority and a party system that gives leaders strict control over their caucus (to the point that MPs may be expelled from their parties for voting against the instructions of party leaders), there is often limited need to compromise with other parties . Additionally, Canada has fewer MPs, a higher turnover rate of MPs after each election, and an Americanised system for selecting political party leaders, leaving them accountable to the party membership rather than caucus, as is the case in the United Kingdom; John Robson of the National Post opined that Canada's parliament had become a body akin to the American Electoral College, "its sole and ceremonial role to confirm the executive in power ." At the end of the 20th century and into the 21st, analysts--such as Jeffrey Simpson, Donald Savoie, and John Gomery--argued that both parliament and the Cabinet had become eclipsed by prime ministerial power . Thus, defeats of majority governments on issues of confidence are very rare . In contrast, a minority government is more volatile, and is more likely to fall due to loss of confidence . The last prime ministers to lose confidence votes were Stephen Harper in 2011, Paul Martin in 2005 and Joe Clark in 1979, all involving minority governments . </P> <P> Parliament possesses a number of privileges, collectively and accordingly known as parliamentary privilege, each house being the guardian and administrator of its own set of rights . Parliament itself determines the extent of parliamentary privilege, each house overseeing its own affairs, but the constitution bars it from conferring any "exceeding those at the passing of such an Act held, enjoyed, and exercised by the (British House of) Commons...and by the Members thereof ." </P>

By what name is the upper house of parliament known