All practice questions

A marine conservation organization proposes installing artificial reefs along a coastal bay to boost local fish numbers. The organization reasons that because artificial reefs in neighboring bays quickly attracted large fish populations, introducing similar structures to this bay will guarantee an increase in the bay's total fish population.

Which of the following are unstated assumptions upon which the conservation organization's argument depends? Select all that apply.

Consider the following GRE Issue prompt claim:

"Governments should fully fund and mandate scientific research in all fields, regardless of commercial viability, because pure scientific discovery is the primary catalyst for long-term societal progress."

Which of the following points identify valid contextual boundaries or exceptions that a nuanced GRE Issue essay response should address to qualify this claim? Select all that apply.

Read the passage below:

In his 1928 critique of early industrial architecture, historian Walter Finch challenged the prevailing view that iron-framed construction was inherently utilitarian and devoid of aesthetic intent. While admitting that functional efficiency governed structural choices in early textile mills, Finch contended that contemporary critics failed to appreciate how master builders attempted to temper the harsh austerity of exposed metal through subtle classical embellishments. By incorporating cast-iron classical capitals and decorative brackets, these builders sought not to conceal the industrial nature of the materials, but to soften their visual impact. Consequently, Finch asserted that early industrial design represented a deliberate synthesis of utility and ornament rather than a triumph of pure engineering over artistic tradition.

In the context of the passage, which word most nearly means 'temper'?

Read the passage below:

In her landmark reexamination of early Renaissance patronage networks, historian Elena Vance chose to qualify the long-standing consensus that Florence’s merchant elite acted out of purely civic altruism. While acknowledging that public commissions enhanced municipal prestige, Vance emphasized that private ledgers reveal meticulous calculations of familial status and political influence. Rather than outright rejecting the thesis of civic pride, she introduced critical caveats regarding tax exemptions and estate preservation that limited the scope of previous generalizations. By underscoring these economic motivations, Vance demonstrated that artistic patronage was rarely a disinterested act of municipal benevolence, but rather a calculated strategy of elite self-perpetuation.

In the context in which it appears in the passage, what single word or short phrase best captures the meaning of the word 'qualify'?

In his 1789 landmark publication Genera Plantarum, French botanist Antoine Laurent de Jussieu sought to reform plant taxonomy by replacing the artificial system established by Carl Linnaeus half a century earlier. Whereas Linnaeus categorized flora almost exclusively by counting reproductive organs—a pragmatic heuristic that facilitated quick identification but often grouped structurally disparate families together—Jussieu advocated for a "natural method." His framework evaluated multiple morphological characters simultaneously, assigning variable weight to traits based on their physiological stability across generations. However, Jussieu’s insistence on holistic evaluation created significant practical hurdles for contemporary field botanists. Lacking standardized diagnostic keys for subterranean root structures and delicate floral anatomy, early collectors found Jussieu’s multi-variate system far less manageable in the field than Linnaeus’s mechanical numerical counting. Consequently, despite the theoretical superiority of Jussieu's natural classification, institutional herbariums throughout Western Europe continued to employ the Linnaean framework for administrative and instructional cataloging well into the nineteenth century.

Based on the passage, which of the following can be inferred regarding eighteenth-century field botanists using the Linnaean system of classification?

To reduce the frequency and severity of wildland fires in the Sierra Nevada, forestry officials initiated a program of extensive underbrush clearing and controlled burning across public forest tracts. Researchers noted that during a subsequent five-year period of severe drought, tracts subjected to underbrush clearing experienced a 40 percent reduction in total burned acreage compared to unmanaged tracts. Consequently, officials concluded that expanding underbrush clearing to all remaining public timberlands in the region will effectively minimize large-scale forest fire damage during future drought cycles. Which of the following statements, if true, most seriously weakens the forestry officials' argument?

In her recent monograph on early Neolithic agricultural expansion in the Levant, archaeobotanist Dr. Miriam Sterling evaluates the hypothesis that pulses of abrupt climatic desiccation were the primary catalyst for plant domestication. Scholars adhering to environmental determinism contend that foraging communities, confronted with shrinking wetland habitats, were effectively compelled into systemic cultivation as a survival imperative. Sterling acknowledges that paleoclimatic proxy data from cave speleothems indicate pronounced aridification during the Younger Dryas episode. However, she cautions against framing human technological adaptation as an unmediated reflex to ecological stress. By analyzing seed morphometrics across successive occupational strata at Tell Qaramel, Sterling demonstrates that selective grain cultivation was already underway prior to peak aridity. While not discounting environmental pressure as a contributing accelerant, Sterling maintains that cultural preferences and intra-regional exchange networks played an equally decisive role in shaping early agrarian strategies. Consequently, she characterizes climatic forcing models not as outright erroneous, but as reductively incomplete.

Based on the passage provided, which of the following statements accurately characterize the author's tone and attitude toward the environmental determinist model? Select all that apply.

In quaternary paleontology, reconstructing late Pleistocene terrestrial ecosystems traditionally relied upon macrofossil remains—bones, teeth, and macrobotanical seeds—recovered from stratified cave deposits. However, such assemblages are intrinsically biased by taphonomic filters, including selective predator accumulation and differential preservation rates. The emergence of sediment ancient DNA (sDNA) analysis has bypassed these constraints by extracting trace organellar DNA directly from inorganic mineral matrices. Notably, while early sDNA protocols yielded inconsistent results due to DNA leaching across stratigraphic layers, recent methodological refinements using targeted hybridization capture have demonstrated that extracellular DNA binds tightly to clay minerals, specifically montmorillonite, preventing vertical migration even in humid karst environments. Contrary to initial assumptions that sDNA primarily records local micro-fauna brought in by owl pellets, comparative metagenomic profiling reveals that clay-bound mammalian DNA in cave fills predominantly originates from shed skin cells and metabolic waste carried by aeolian dust and meteoric water percolation, rather than biotic vectors. Consequently, sDNA profiles reflect regional mammalian community structure over multi-decadal accumulation windows, rather than immediate site-specific prey deposition.

Based on the passage, recent methodological refinements in sediment ancient DNA (sDNA) analysis established that vertical migration of extracellular DNA across stratigraphic layers is prevented primarily by which of the following mechanisms?

Archaeologists analyzing the ancient agricultural settlement of Oakhaven found that soil moisture levels dropped sharply during the eighth century CE, a period corresponding to a recorded increase in regional temperatures. Because crop yields collapsed simultaneously, the archaeologists concluded that the rise in regional temperatures was the direct cause of the soil moisture depletion and the subsequent agricultural collapse.

Which of the following, if true, most seriously weakens the archaeologists' argument?

Recent research into avian magnetoreception has identified cryptochromes—light-sensitive proteins located in the retinas of migratory birds—as key mediators of radical-pair reactions. When exposed to blue light, these proteins undergo a chemical transformation that generates pairs of transient free radicals with unpaired electrons. The quantum spin states of these radical pairs fluctuate in response to Earth’s magnetic field, altering the duration of the activated signaling state. Importantly, while earlier hypotheses posited that magnetoreception operated independently of visual input, recent structural assays confirm that radical-pair formation requires specific wavelengths of ambient light to initiate electron transfer. Furthermore, whereas magnetite-based receptors in avian beaks provide information regarding magnetic intensity, retinal cryptochromes specifically detect magnetic inclination, enabling birds to perceive the angle at which magnetic field lines intersect the Earth's surface.

Based on the passage, which of the following statements regarding avian magnetoreception is/are explicitly supported? Consider each of the choices separately and select all that apply.

In the early nineteenth century, the field of comparative philology underwent a conceptual shift when scholars began prioritizing morphological paradigms over superficial lexical resemblances to establish linguistic genealogical relationships. Prior to this transition, antiquarians often compiled lists of phonetically similar words across disparate languages, inferring historical contact or shared ancestry from coincidental overlaps. Franz Bopp and Rasmus Rask, however, demonstrated that structural inflections—such as verbal conjugation patterns and nominal declensions—exhibited systemic structural correspondences that could not be adequately explained by trade, proximity, or random chance. Because inflectional systems are highly resistant to horizontal borrowing between mature languages, their systemic alignment across Sanskrit, Greek, and Latin served as compelling evidence of descent from a common ancestral language. Nonetheless, early philologists remained wary of over-relying on sound changes without structural corroboration, recognizing that phonetic shifts could occur independently in unrelated tongues through parallel evolution. Consequently, the establishment of the Indo-European language family depended not merely on observing isolated lexical parallels, but on isolating recalcitrant grammatical structures that resisted borrowing yet preserved regular morphological correspondences.

Based on the passage, which of the following can be inferred regarding the study of language relationships prior to the work of Bopp and Rask? Consider each of the choices separately and select all that apply.

Read the academic passage below and identify the sentence that performs the specified rhetorical function.

Read the passage below and answer the question.

Linguists studying the historical divergence of the Sino-Tibetan language family have long debated whether shared structural traits among disparate dialects stem from genealogical inheritance or centuries of intense contact. Early typological models posited that tonal systems emerged independently as a compensatory mechanism following the loss of syllable-final consonants. However, recent comparative work utilizing phylogenetic phonology demonstrates that tone in Proto-Sino-Tibetan was already present as a contrastive feature rather than a late secondary development. This finding undermines the traditional assumption that structural simplicity inevitably precedes tonal complexity in Asian linguistic evolution. Nonetheless, some scholars contend that cross-linguistic lexical borrowing has blurred the boundaries between inherited traits and areal diffusion. Ultimately, isolating genetic relationships requires identifying regular sound correspondences that resist horizontal transfer across speech communities.

Select the sentence in the passage that presents empirical evidence challenging a long-held hypothesis regarding the origins of tonal features.

Read the passage below. Identify the sentence that functions primarily to present specific historical evidence supporting a revisionist perspective. Enter the sentence identifier (e.g., Sentence 4) into the blank.

In his 1727 treatise Statical Essays, English natural philosopher Stephen Hales challenged prevailing physiological paradigms by quantifying the volume of water transpired by plants relative to their root absorption. Utilizing custom-built hydrostatic balances and sealed glass apparatuses, Hales demonstrated that plants do not merely act as passive conduits for soil nutrients dissolved in water, but actively drive fluid movement through atmospheric evaporation from leaves. However, because Hales conceptualized 'air' as a singular, chemically inert element rather than a mixture of distinct gases, he interpreted the gaseous emissions released during plant distillation as structural components of plant matter that had been temporarily mobilized. Consequently, while Hales correctly identified the indispensable role of solar heat and atmospheric pressure in sustaining transpiration currents, he concluded that atmospheric air entered plant vessels directly through the bark and leaves to provide mechanical rigidity, rather than participating in metabolic chemical synthesis. Modern commentators often highlight this theoretical impasse to illustrate how rigorous quantitative measurement can coexist with fundamentally erroneous mechanistic assumptions, noting that without an understanding of gaseous composition—a development that would await the pneumatic chemical revolution of the late eighteenth century—Hales was unable to link transpiration dynamics to cellular assimilation.

Which of the following can be inferred from the passage regarding Stephen Hales' understanding of plant gaseous exchange?

Passage:
Historically, the acoustic design of performance halls relied almost exclusively on empirical rules of thumb and intuitive architectural imitation rather than rigorous physical principles. When Wallace Clement Sabine was tasked in the late 1890s with correcting the atrocious acoustics of Harvard University's Fogg Art Museum lecture hall, he instituted a systematic, quantitative methodology that transformed architectural acoustics from an imprecise craft into a formal branch of applied physics. By meticulously measuring the reverberation times of various rooms using a pipe organ stop and a stopwatch, Sabine derived an empirical equation relating a room's volume and total sound absorption to its reverberation time. While subsequent scholars have frequently portrayed Sabine’s work as a sudden, isolated breakthrough that instantly discredited traditional building methods, recent architectural historians argue that his acoustic equations actually formalized and quantified acoustic intuitions that master builders had successfully deployed for centuries. Thus, Sabine’s true contribution lay not in inventing acoustic awareness ex nihilo, but in providing a standardized mathematical framework that rendered traditional acoustic knowledge reproducible and scalable across modern architectural designs.

Which of the following best states the primary purpose of the passage?

Passage: In the mid-nineteenth century, historical linguistics was dominated by August Schleicher’s cladistic tree model (Stammbaumtheorie), which posited that languages diverge through discrete, binary branchings from a common ancestral tongue. Schleicher’s framework, influenced by contemporary evolutionary biology, conceptualized language splitting as an irreversible process resulting in mutually isolated daughter lineages. However, in 1872, Johannes Schmidt proposed an alternative paradigm: the wave model (Wellentheorie). Schmidt argued that linguistic innovations do not propagate through neat, catastrophic bifurcations; rather, specific phonetic and structural changes spread like concentric waves across geographic space, intersecting and overlapping across pre-existing dialect continuums. Under Schmidt’s formulation, shared linguistic features between adjacent speech communities often reflect areal contact and gradual diffusion rather than exclusive common ancestry. Although nineteenth-century neogrammarians initially dismissed the wave model as an unnecessary complication to their deterministic sound laws, modern dialectology and phylogenetics increasingly recognize that language evolution is reticulate—involving both vertical inheritance and horizontal transfer. Far from invalidating the tree model entirely, Schmidt's insight introduced an essential nuance, demonstrating that genealogical classification must account for the continuous spatial dynamics of language contact.

Which of the following best describes the primary purpose of the passage?

A municipal library system plans to replace half of its physical reference desk staff with automated digital catalog kiosks, reasoning that this change will allow the library to reduce operating expenses without decreasing the total number of patrons served daily. Which of the following is an assumption upon which the library system's plan depends?

Read the following excerpt from a draft essay on behavioral economics:

"Although behavioral economists have long demonstrated that human decision-making is heavily influenced by cognitive biases, traditional macroeconomic models continue to assume perfect rationality, however, recent empirical studies from neuroeconomics are beginning to bridge this theoretical divide."

Which of the following revisions corrects the sentence boundary error while maintaining standard English conventions and preserving the original meaning of the excerpt?

In his reexamination of the glottalic theory proposed to revise Proto-Indo-European (PIE) consonant phonology, linguist Dr. Marcus Vance addresses the hypothesis that the traditional reconstruction of PIE voiced stops was phonetically improbable. Proponents of glottalic reconstruction argue that substituting ejectives for traditional voiced stops resolves the anomalous absence of the unvoiced labial stop *p while eliminating typological irregularities in root structure constraints. Vance concedes that the glottalic model provides an elegant structural explanation for root morpheme distribution asymmetries that classic Neogrammarian models struggled to rationalize. However, he maintains that the theory relies on unverified phonetic typological universals and underestimates the robust attestation of sound shifts in peripheral Anatolian dialects. While recognizing the glottalic hypothesis as a provocative challenge to traditional historical phonology, Vance contends that its proponents have declared a paradigm shift prematurely, mistaking internal structural symmetry for empirical historical proof.

Which of the following best characterizes Vance's attitude toward the glottalic theory of Proto-Indo-European consonant phonology?