Small parties tend to be underrepresented in two-party and two-plus party systems. (True or false?)

Small parties tend to be underrepresented in two-party and two-plus party systems.
 
  Indicate whether this statement is true or false.

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The parties in Sweden's Riksdag maintain a right-leaning ideological bent.
 
  Indicate whether this statement is true or false.

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A two party system is a party system with only two parties present.
 
  Indicate whether this statement is true or false.

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What brought about real mass unrest in the Soviet Union?
 
  A) The fall of Soviet-supported communist regimes in Latin America B) Brezhnev repressing the people C) President Reagan threatening nuclear attack D) Gorbachev admitting that things were wrong, and instituting major reforms

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In 2000, Mexico's conservative National Action Party (PAN) overcame the Party of Institutional Revolution's (PRI) lock on the presidency with the election of Vicente Fox, moving Mexico from a dominant-party to a multiparty system.
 
  Indicate whether this statement is true or false.