Explanation:
As noted, Republicans and Democrats have dominated electoral politics since the 1860s. This unrivaled record of the same two parties continuously controlling a nation’s electoral politics reflects structural aspects of the American political system as well as special features of the parties.
The standard arrangement for electing national and state legislators in the United States is the “single-member” district system, wherein the candidate who receives a plurality of the vote (that is, the greatest number of votes in the given voting district) wins the election. Although a few states require a majority of votes for election, most officeholders can be elected with a simple plurality.
Unlike proportional systems popular in many democracies, the single-member-district arrangement permits only one party to win in any given district. The single-member system thus creates incentives to form broadly based national parties with sufficient management skills, financial resources and popular appeal to win legislative district pluralities all over the country. Under this system, minor and third-party candidates are disadvantaged. Parties with minimal financial resources and popular backing tend not to win any representation at all. Thus, it is hard for new parties to achieve a viable degree of proportional representation, and achieve national clout, due to the “winner-take-all” structure of the U.S. electoral system.
Why two instead of, say, three well-financed national parties? In part because two parties are seen to offer the voters sufficient choice, in part because Americans historically have disliked political extremes, and in part because both parties are open to new ideas (see below).
Caracas - Venezuela
San Pedro Sula - Honduras
San Salvador - El Salvador
Acapulco - Mexico
Reading a single review of a movie can be informative, but reading a synthesis of many reviews of the same movie can be much more informative about the effect the movie had across many individuals. This notion is analogous to the research strategy known as meta- analysis.
The answer is: b. competition model
According to the competition model, at the earlier period when people try to learn different language structure, the information that people learn will compete/conflicting with one another.
This phenomenon explain the irregularity that occurs among children when they're trying to use past tense. Since the information about different sentences overlapping in their head, they sometimes overgeneralize some words as if they belong in the same tenses.
Has not slept enough hours to meet her needs for a long period of time.
