An Electoral District from Which Only One Representative Is Elected

question 56

Multiple Choice

An electoral district from which only one representative is elected is called a(n)

• A)single-member district.
• B)one-person, one-vote district.
• C)equilateral district.
• D)unirepresentational district.

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Definitions:

M Line

Line in the center of the H zone made of delicate filaments that holds the myosin myofilaments in place in the sarcomere of muscle fibers.

Myosin Head

The globular part of the myosin protein that binds to actin filaments in muscle cells during contraction.

Troponin

A protein complex involved in the regulation of skeletal and cardiac muscle contraction, which binds to calcium ions causing a change that allows muscle contraction.

ATPase Activity

The enzymatic activity involved in hydrolyzing ATP (adenosine triphosphate) to release energy.