Pearson GRE New Attempt

The term "ragtime opera" was used frequently m the first years of the twentieth century, but more often than not its use was (i)_________. The very idea of "ragtime opera" was viewed as lii)_________: opera was regarded as the highest form of musical art; ragtime was at the opposite pole.

Cole makes the argument that while some advocates of government transparency seem to treat any exposure of state secrets as an (i)_________. that position is (ii)_________; there are many legitimate bases for (hi)_________ disclosures. Cole contends, particularly when they reveal the identities of sources and methods of foreign intelligence.

Instances of "galactic cannibalism"—mergers in which large galaxies completely consume smaller ones—may be fairly common. Tidal forces produced by the Milky Way's powerful gravity, for example, appear to be dismantling and engulfing a dwarf galaxy in the constellation Sagittarius, producing large clumps and streamers of stars connecting the two galaxies. Astronomers have also observed two dense clusters of stars and gas at the heart of the Andromeda galaxy, an apparent "double nucleus" that may contain the remnant of a cannibalized dwarf galaxy. But this twin-lobed appearance could also be created by two parts of a single nucleus bisected by a lane of dust. Scientists believe that only about 25 percent of such apparent double nuclei actually represent galactic cannibalism. Many of the rest result from the illusion of proximity that occurs when objects at different distances appear along the same line of sight: others consist of debris from galactic "collisions." in which one galaxy has passed through another without merging, causing waves of new star formation.

The primary purpose of the passage is to

Origin, distribution, and habitat are included in the book for some but not all of the plants: offering this information for each species would have given readers a clearer appreciation of the differences between _________and introduced species.