Which of the following, if true, supports the claim that information about viewers' percep- tions of the quality of television programs could be valuable to advertisers?
(A) The number of programs judged to be of high quality constituted a high per- centage of the total number of programs judged.
(B) Many of the programs judged to be of high quality were shown on noncommercial networks.
(C) Television viewers more frequently remember the sponsors of programs they admire than the sponsors of programs they judge mediocre.
(D) Television viewers tend to watch new programs only when those programs follow old, familiar programs.
(E) Television viewers report that the quality of a television advertisement has little effect on their buying habits.
23. Many researchers believe that the presence of RNA in brain cells is the biochemical basis of memory; that is, the presence of RNA enables us to remember. Because certain chemicals are known to inhibit the synthesis of RNA in the body, we can test this hypothesis. Animals that have learned particular responses can be injected with an RNA inhibitor and then tested for memory of the learned responses.
Which of the following test results would most seriously weaken the case for RNA as the basis of memory?
(A) After an injection of RNA inhibitor, a wide range of behaviors in addition to the learned responses were affected.
(B) After an injection of RNA inhibitor, animals that had not consistently been giving the learned responses were able to give them consistently.
(C) After injections of RNA inhibitor, some animals lost memory of the learned responses totally but others lost it only partially.
(D) After a small injection of RNA inhibitor, animals responded well, but as the size of the injection increased, they gave fewer of the learned responses.
(E) After an injection of RNA inhibitor, animals could not learn a new response.
24. The greatest chance for the existence of extra- terrestrial life is on a planet beyond our solar system. The Milky Way galaxy alone contains 100 billion other suns, many of which could be accompanied by planets similar enough to Earth to make them suitable abodes of life.
The statement above assumes which of the following?
(A) Living creatures on another planet would probably have the same appearance as those on Earth.
(B) Life cannot exist on other planets in our solar system.
(C) If the appropriate physical conditions exist, life is an inevitable consequence.
(D) More than one of the suns in the galaxy is accompanied by an Earth-like planet.
(E) It is likely that life on another planet would require conditions similar to those on Earth.
25. A ten-year comparison between the United States and the Soviet Union in terms of crop yields per acre revealed that when only planted acreage is compared, Soviet yields are equal to 68 percent of United States yields. When total agricultural acreage (planted acreage plus fallow acreage) is compared, however, Soviet yield is 114 percent of United States yield.
From the information above, which of the following can be most reliably inferred about United States and Soviet agriculture during the ten-year period?
(A) A higher percentage of total agricultural acreage was fallow in the United States than in the Soviet Union.
(B) The United States had more fallow acreage than planted acreage.
(C) Fewer total acres of available agricultural- land were fallow in the Soviet Union than in the United States.
(D) The Soviet Union had more planted acreage than fallow acreage.
(E) The Soviet Union produced a greater volume of crops than the United States produced.
No-4-2 SECTION 1
1. Physicists rejected the innovative experimental technique because, although it----some problems, it also produced new----.
(A) clarified.. data
(B) eased.. interpretations
(C) resolved.. complications
(D) caused.. hypotheses
(E) revealed.. inconsistencies
2. During a period of protracted illness, the sick can become infirm, ----both the strength to work and many of the specific skills they once possessed.
(A) regaining (B) denying (C) pursuing
(D) insuring (E) losing
3. The pressure of populati
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