GRE - Graduate Record Examinations Reading Comprehension Passages Questions and Answers

Question 1

Passage: The reintroduction of wolves into Yellowstone National Park in 1995 is a classic example of a trophic cascade.
Before the wolves' return, the elk population had grown unchecked, leading to overgrazing of willow and aspen trees, particularly along rivers.
This habitat degradation negatively impacted beaver populations, which rely on willows for food and dam construction.
The absence of beaver dams, in turn, altered river hydrology and reduced biodiversity.
With the wolves' return, elk populations were controlled, not just through predation but also through behavioral changes—the elk avoided valleys and gorges where they could be easily trapped.
This 'ecology of fear' allowed willows and aspens to rebound, leading to the return of beavers.
The new beaver dams created habitats for otters, muskrats, and various fish species, while the rejuvenated trees provided homes for songbirds.
Wolf kills also provided a crucial food source for scavengers like grizzly bears and eagles.
Thus, the reintroduction of a single keystone species triggered a complex cascade of ecological effects, restoring the park's biodiversity and ecosystem stability.
The primary purpose of the passage is to:

The primary purpose of the passage is to:

Accepted Answer

describe the specific ecological changes in Yellowstone following wolf reintroduction.

Answer

argue for the reintroduction of predators in all national parks.

Answer

criticize the park management for its previous policy on elk populations.

Answer

compare the 'ecology of fear' to direct predation.

Question 2

Passage: The reintroduction of wolves into Yellowstone National Park in 1995 is a classic example of a trophic cascade.
Before the wolves' return, the elk population had grown unchecked, leading to overgrazing of willow and aspen trees, particularly along rivers.
This habitat degradation negatively impacted beaver populations, which rely on willows for food and dam construction.
The absence of beaver dams, in turn, altered river hydrology and reduced biodiversity.
With the wolves' return, elk populations were controlled, not just through predation but also through behavioral changes—the elk avoided valleys and gorges where they could be easily trapped.
This 'ecology of fear' allowed willows and aspens to rebound, leading to the return of beavers.
The new beaver dams created habitats for otters, muskrats, and various fish species, while the rejuvenated trees provided homes for songbirds.
Wolf kills also provided a crucial food source for scavengers like grizzly bears and eagles.
Thus, the reintroduction of a single keystone species triggered a complex cascade of ecological effects, restoring the park's biodiversity and ecosystem stability.
The primary purpose of the passage is to:

The passage suggests that before 1995, the rivers in Yellowstone were likely characterized by:

Accepted Answer

less biodiversity and more uniform water flow.

Answer

an overabundance of beaver dams.

Answer

thriving populations of otters and muskrats.

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dense forests of willow and aspen along their banks.

Question 3

Passage: In analyzing the works of Virginia Woolf, particularly 'To the Lighthouse' and 'Mrs. Dalloway,' critics often focus on her pioneering use of stream of consciousness. This narrative technique, which attempts to render the flow of a character's unfiltered thoughts, feelings, and memories, represents a radical departure from the more linear, plot-driven novels of the Victorian era. However, to solely categorize Woolf by this technical innovation is to overlook the profound thematic concerns that propel her writing. Woolf was deeply engaged with the social and psychological constraints placed upon women in patriarchal early 20th-century England. Her characters grapple with the tension between their inner lives and the societal roles they are expected to fulfill. The fragmented, fluid nature of her prose is not merely a stylistic flourish; it is the very form through which she explores the complexities of identity, the passage of time, and the elusive nature of human connection. The technique serves the theme, allowing Woolf to portray consciousness as it is shaped and constrained by external social pressures.

The author mentions 'the more linear, plot-driven novels of the Victorian era' primarily in order to:

Accepted Answer

provide an example of a literary tradition that Woolf was reacting against.

Answer

suggest that Victorian novels are less complex than Woolf's work.

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argue that stream of consciousness is the most effective narrative technique.

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praise the technical innovations of Victorian authors.

Question 4

Passage: In analyzing the works of Virginia Woolf, particularly 'To the Lighthouse' and 'Mrs. Dalloway,' critics often focus on her pioneering use of stream of consciousness. This narrative technique, which attempts to render the flow of a character's unfiltered thoughts, feelings, and memories, represents a radical departure from the more linear, plot-driven novels of the Victorian era. However, to solely categorize Woolf by this technical innovation is to overlook the profound thematic concerns that propel her writing. Woolf was deeply engaged with the social and psychological constraints placed upon women in patriarchal early 20th-century England. Her characters grapple with the tension between their inner lives and the societal roles they are expected to fulfill. The fragmented, fluid nature of her prose is not merely a stylistic flourish; it is the very form through which she explores the complexities of identity, the passage of time, and the elusive nature of human connection. The technique serves the theme, allowing Woolf to portray consciousness as it is shaped and constrained by external social pressures.

Which of the following best describes the author's main argument about Virginia Woolf's work?

Accepted Answer

The stylistic innovation in Woolf's writing is intrinsically linked to her exploration of its central themes.

Answer

Woolf's primary contribution to literature was the invention of the stream of consciousness technique.

Answer

Woolf's novels are more concerned with social commentary than with character development.

Answer

The psychological constraints on women were a more important theme for Woolf than the passage of time.

Question 5

Passage: The concept of a 'habitable zone' around a star—often called the 'Goldilocks zone'—is the region where an orbiting planet could maintain liquid water on its surface. This concept has been a cornerstone of the search for extraterrestrial life. However, recent research suggests this model may be overly simplistic. For one, it does not account for the potential of liquid water to exist in subsurface oceans, heated by tidal forces or radioactive decay, on moons far outside the traditional habitable zone, such as Jupiter's moon Europa. Furthermore, the model presumes a planet with an Earth-like atmosphere. A planet with a much denser atmosphere could trap enough heat to support liquid water much farther from its star, while a planet with a thin atmosphere might freeze even within the zone. Stellar activity also complicates the picture; a planet in the habitable zone of a red dwarf star, for instance, might be subject to frequent, powerful solar flares that could strip away its atmosphere and render it lifeless. Therefore, while the habitable zone remains a useful initial filter, a more nuanced, multi-variable approach is necessary to accurately assess a planet's potential for life.

The passage's argument that the traditional 'habitable zone' concept is 'overly simplistic' would be most weakened if which of the following were discovered to be true?

Accepted Answer

Most rocky exoplanets are found to have atmospheres almost identical in composition and density to Earth's.

Answer

The majority of red dwarf stars are found to be much less active than previously believed.

Answer

Subsurface oceans, like the one on Europa, are conclusively proven to be incapable of supporting any form of life.

Answer

Liquid water is not, in fact, a necessary prerequisite for the development of life.

Question 6

Passage: The concept of a 'habitable zone' around a star—often called the 'Goldilocks zone'—is the region where an orbiting planet could maintain liquid water on its surface. This concept has been a cornerstone of the search for extraterrestrial life. However, recent research suggests this model may be overly simplistic. For one, it does not account for the potential of liquid water to exist in subsurface oceans, heated by tidal forces or radioactive decay, on moons far outside the traditional habitable zone, such as Jupiter's moon Europa. Furthermore, the model presumes a planet with an Earth-like atmosphere. A planet with a much denser atmosphere could trap enough heat to support liquid water much farther from its star, while a planet with a thin atmosphere might freeze even within the zone. Stellar activity also complicates the picture; a planet in the habitable zone of a red dwarf star, for instance, might be subject to frequent, powerful solar flares that could strip away its atmosphere and render it lifeless. Therefore, while the habitable zone remains a useful initial filter, a more nuanced, multi-variable approach is necessary to accurately assess a planet's potential for life.

According to the passage, which of the following is NOT mentioned as a factor that complicates the traditional habitable zone model?

Accepted Answer

The rotational speed of a planet on its axis.

Answer

The presence of subsurface oceans on celestial bodies.

Answer

The type and level of a star's radiation activity.

Answer

The density and composition of a planet's atmosphere.