What is the primary constitutional task of the vice president, besides succeeding the president in case of death, resignation, or incapacitation? 

In a case challenging a law banning same sex marriage, a person or group with standing to sue would be?

Which statement is true regarding voter registration regulations? 

The rule of the House of Representatives emphasize (fill in the blank), while the rules of the Senate emphasize (fill in the blank). 

Committee assignments are important for all of the following reasons EXCEPT that they: 

In separating the war powers, the Constitution gives the (fill in the blank) to declare war and the (fill in the blank) the power to direct the armed forces. 

Congress adjourns during a ten-day period after presenting the president with a bill, and the president takes no action. What is this action called? 

Because it sets the rate of the depolarization for the normal heart rate, the …………. is known as the pacemaker of the heart.

In a typical ECG, the …………… wave signals the depolarization of the atria immediately before they contract.

The cardiac muscle cells (cardiomyocytes) are electrically connected by tight junctions and each cardiomyocyte behaves as a single independant unit that contracts separtely from the other cardiomyocytes.