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GRE Exam Dumps - GRE General Test

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Question # 17

The following appeared in a letter to the editor of a Batavia newspaper

"The department of agriculture in Batavia reports that the number of dairy farms throughout the country is now 25 percent greater than it was 10 years ago. Dunne this same time period, however, the price of milk at the local Excello Food Market has increased from SI.50 to over S3.00 per gallon. To prevent farmers from continuing to receive excessive profits on an apparently increased supply of milk, the Batavia government should begin to regulate retail milk prices Such regulation is necessary to ensure fair prices for consumers."

Write a response in which you discuss what questions would need to be answered in order to decide whether the recommendation is likely to have the predicted result Be sure to explain how the answers to these questions would help to evaluate the recommendation

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Question # 18

Larvae of many marine invertebrate species delay their metamorphosis into juveniles when cues signaling an appropriate juvenile environment are absent, thereby increasing then* likelihood of thriving as juveniles and of ultimately reaching adulthood Nevertheless, delayed metamorphosis has potential costs for juveniles including reduced growth and increased mortality Nearly all evidence of such costs involves species whose larvae do not feed but rather subsist on stored nutrients, indicating that insufficient energy reserves may be an underlying cause of these costs. Supporting this hypothesis are laboratory studies showing that in a certain bryozoan. the prolonged larval swimming that results from delayed metamorphosis is associated with size reductions in the juvenile feeding organ (the lophophore) and that one factor influencing the size of juveniles of certain barnacle species is how long larvae delay metamorphosis However, other studies show that while significantly fewer juvenile Capitella worms survived to adulthood when metamorphosis had been delayed, prolonged larval swimming had no significant effect on juvenile size, suggesting, perhaps, that in some species, factors other than insufficient energy reserves account for the negative effects of the larval stresses that result from delayed metamorphosis.

The "hypothesis" implies that compared to marine invertebrate larvae that subsist on stored nutrients, marine invertebrate larvae that feed are less likely to

A.

exhibit prolonged larval swimming as a result of delayed metamorphosis

B.

experience negative effects as a result of delayed metamorphosis

C.

thrive as juveniles in environments inappropriate for juveniles

D.

delay metamorphosis in the absence of appropriate environmental cues

E.

delay metamorphosis for an extended period of time

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Question # 19

The poet Paul Laurence Dunbar (1872-1906) was the premier Black writer of poetry that used the dialect of rural African Americans of the southern United States. Although Dunbar's works were both popular with readers and acclaimed by literary critics during his lifetime, after the First World War a radical shift occurred, at least in critical opinion of his poetry, and twentieth-century critical evaluation of his work has been generally negative. Some critics attacked his work on social grounds for failing to challenge plantation stereotypes of African Americans. Other critics, such as the poet James Weldon Johnson, argued from aesthetic grounds that dialect poetry in general was too limited as an artistic medium, and capable of producing only two effects: pathos and humor. The negative critical trend only began to reverse itself in the 1970s, when scholars began to emphasize the importance of mythic, psychological, and historical dimensions of Dunbar's works, focusing on the interior and exterior realities of African American life after the Civil War.

Which of the following general criticisms of dialect poetry is mentioned in the passage?

A.

Dialect poetry too often uses only the dialect of African Americans living in rural areas of the southern United States.

B.

Dialect poetry is highly limited in the number of artistic effects it can produce.

C.

Dialect poetry fails to represent mythic, psychological, and historical dimensions of experience.

D.

The use of dialect in poetry tends to perpetuate plantation stereotypes of African Americans.

E.

Dialect poetry has only a limited degree of popular appeal

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Question # 20

Female Australian Dunaiothhps [small, sap-sucking insects] create tent-like structures on the surface of leaves to protect themselves and their eggs and larvae from desiccation in the arid Australian climate. Bono and Crespi compared survival and reproduction of thrips that founded structures alone with those in groups of two or more individuals. They found that although per capita egg production fell with increasing group size, foundresses were more likely to survive and lay eggs in groups than when alone. Several studies of other species of nest-building insects have concluded that foundress associations are beneficial to all parties. It is likely that the relative success of groups is at least in part accounted for by a reduction of energy use in the modification of a shared nest.

The author mentions "desiccation" primarily to

A.

describe an environment suitable for one species* reproduction

B.

characterize a stage in an insect species' developmental cycle

C.

analyze an environmental challenge faced by some insect species

D.

exemplify a changing feature of a particular climate

E.

identify the purpose served by a particular behavior

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Question # 21

Female Australian Dunalothrips [small, sap-sucking insects] create tent-like structures on the surface of leaves to protect themselves and their eggs and larvae from desiccation in the arid Australian climate. Bono and Crespi compared survival and reproduction of thrips that founded structures alone with those in groups of two or more individuals. They found that although per capita egg production fell with increasing group size, foundresses were more likely to survive and lay eggs in groups than when alone. Several studies of other species of nest-building insects have concluded that foundress associations are beneficial to all panics. It is likely that the relative success of groups is at least in part accounted for by a reduction of energy use in the modification of a shared nest.

The author suggests which of the following about the "reduction of energy use"?

A.

It may be beneficial enough to insects to offset a decrease in per capita egg production.

B.

It has been shown to occur primarily in species of insects that live in arid climates.

C.

Its negative consequences for insect eggs and larvae are outweighed by other, more advantageous effects.

D.

Its magnitude is most likely smaller than suggested by some early research studies on insect reproduction.

E.

It may help insects to regulate egg production in groups that reach a certain population density.

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Question # 22

As originally formulated, the selfish-herd theory of prey species aggregation assumed that predatory attacks were equally likely to be launched from any position within the environment. In some circumstances (e.g.. avian predators attacking prey from above), such an approach is appropriate. However, as James et at. argue, in many predator-prey associations, attacks are unlikely to occur from positions within the group. For example, it is likely that an ambushing predator waiting in the path of a group would be detected before the group moves over its position. Hence, in many ecological situations, predatory attacks on grouped prey will occur exclusively from outside the group. In such circumstances, there is a strong premium to a group member in being in the interior of the group.

The passage suggests that compared to members of the prey groups in "some circumstances." certain members of the prey groups in "many ecological situations" are likely to be less

A.

skilled at detecting ambushing predators

B.

vulnerable to predator attacks

C.

able to reach escape routes to avoid predators

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Question # 23

It is nn ironic reversal that just those politicians who most vociferously lambasted the distorting complexities of the country's tax system are now the ones_________an agreement that worsens the mess.

A.

espousing

B.

discounting

C.

eschewing

D.

championing

E.

negotiating

F.

ignoring

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Question # 24

Normally, seeds of Emmenathe penduliflora stay dormant for years and germinate only when a fire burns through their habitat. Nitrogen dioxide in the smoke induces the seeds to germinate. Fires clear the brush, allowing germinating seeds to receive the sunlight they need to grow. The plants mature quickly, produce seeds, and then die. In areas with heavy automobile traffic, however, the seed germinates in the absence of lire, with automobile exhaust supplying the required nitrogen dioxide.

The information given, if accurate, most strongly supports which of the following hypotheses?

A.

Fires in the habitat of £. pendulijlora do not entirely destroy the plant's seeds even in the places where the fires burn most intensely.

B.

The nitrogen dioxide in automobile exhaust eannot harm plants of E. pendulijlora after germination.

C.

If human intervention decreases the number of fires in the habitat off. pendulijlora. automobile exhaust can replicate the conditions the plant requires in order to thrive.

D.

Within the habitat of E. pendulijlora . natural fires are significantly more frequent in areas with heavy automobile traffic than they are in other areas.

E.

Unless E. pendulijlora seeds that have germinated can survive in the shade, automobile exhaust threatens the long-term survival of the plant in areas with heavy automobile traffic.

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