All practice questions

Consider the following argument:

Agronomist: The widespread adoption of genetically modified (GM) pest-resistant cotton in Region X has led to a significant decrease in the use of broad-spectrum chemical pesticides. Environmentalists claim that this reduction in pesticide use has allowed populations of beneficial predatory insects, which naturally control secondary pests like aphids, to rebound. However, the recent explosion of the aphid population in Region X's cotton fields demonstrates that the environmentalists' claim is incorrect.

The supplementary statement 'The genetically modified cotton cultivated in Region X produces a unique metabolic byproduct that makes aphids highly toxic to beneficial predatory insects' strengthens the agronomist's argument.

In the late sixteenth century, astronomer Tycho Brahe observed that the Moon appeared noticeably smaller when projected inside a camera obscura during a solar eclipse than when observed directly against the night sky. Lacking a comprehensive theory of pinhole optics, Brahe concluded that the Moon's physical distance from Earth must temporarily increase during solar conjunctions. Several years later, Johannes Kepler reexamined these findings by constructing a mathematical model of aperture geometry. Kepler demonstrated that light passing through any finite aperture creates overlapping cones of illumination that artificially enlarge the image of a bright background source while simultaneously shrinking the perceived boundary of an opaque intervening object. Consequently, Kepler established that the discrepancy between direct observations and eclipse projections was entirely a consequence of aperture-induced optical distortion rather than any orbital shift.

Which one of the following statements is most strongly supported by the passage?

Passage A
The abrupt termination of the Late Bronze Age palace economies across the Eastern Mediterranean cannot be attributed to a single cataclysmic event. Rather, it represents a classic "systems collapse." By the twelfth century BCE, a highly centralized, heavily interdependent trade network had become fatally fragile. When a confluence of environmental stressors—most notably a multi-decade period of severe aridity—disrupted agricultural yields, the rigid palace economies could not adapt. The subsequent famines triggered internal rebellions and systemic economic failure. In this context, the marauding groups famously known as the "Sea Peoples" were merely opportunistic refugees fleeing their own collapsing homelands. They were a symptom of the wider systemic disintegration rather than its primary cause.

Passage B
Recent historiography has trended toward removing human agency from the Late Bronze Age collapse, preferring complex, multi-variable models that emphasize climate change and systemic fragility. While it is undeniable that an extended period of aridity strained the resources of these empires, environmental determinism fails to account for the specifically martial and sudden nature of the destruction horizons found at major archaeological sites. The archaeological record shows the systematic, violent destruction of fortified citadels—a signature of coordinated invasion, not merely internal decay. The "Sea Peoples" were not simply displaced symptoms of a changing climate, but rather a formidable military confederation whose deliberate severing of vital maritime trade routes actively precipitated the collapse of the era's great powers.

Statement to Evaluate:
The authors of Passage A and Passage B disagree over whether the movement of the Sea Peoples was a consequence of the region's systemic instability rather than the primary catalyst for the collapse of the palace economies.

In paleogenomics, estimating the divergence dates of extinct Pleistocene megafauna has long relied on radiocarbon-calibrated molecular clocks. Recently, evolutionary geneticist Clara Thorne proposed an alternative Bayesian decay model that incorporates microenvironmental thermal fluctuations to recalibrate these timelines. While mainstream phylogeneticists have dismissed Thorne’s adjustments as needlessly speculative, her mathematical framework exhibits genuine ingenuity in rectifying persistent anomalies in fossil records from permafrost regions. To be sure, her model remains constrained by a paucity of empirical soil-temperature data across the late Quaternary, leaving several crucial assumptions unverifiable for now. Nevertheless, by moving beyond uniformitarian assumptions of thermal history, Thorne’s approach provides a compelling heuristic that future genomic studies would be ill-advised to ignore.

The author’s attitude toward Thorne’s proposed Bayesian decay model can best be described as which of the following?

Urban Planner: The current push to replace aging macro-grid infrastructure entirely with decentralized microgrids is misguided. Proponents of total decentralization correctly note that microgrids can autonomously isolate themselves during catastrophic weather events, thereby offering undeniable resilience against localized outages. What they ignore, however, is the inherent volatility of localized renewable energy generation. Macro-level grid integration is uniquely capable of smoothing out this volatility by instantaneously redistributing surplus power across vast geographic distances. Consequently, abandoning the integrated macro-grid would force a purely decentralized system to rely on massively redundant and highly impractical energy storage solutions just to maintain baseline stability.

Which one of the following most accurately expresses the main conclusion of the urban planner's argument?

Lindo: To alleviate the severe housing shortage, the city must abolish single-family zoning regulations. While introducing high-density residential development will inevitably alter the historical character of the neighborhoods where it occurs, the resulting expansion in housing supply will drive down average rents. However, we must retain our strict municipal permitting fees on new construction. Without the revenue generated by these specific fees, the city cannot adequately fund the infrastructure upgrades required to support higher population densities.

Kael: Abolishing single-family zoning is indeed essential for increasing the housing supply, an expansion that will ultimately reduce average rent prices. But the claim that high-density development inevitably alters the historical character of the neighborhoods where it occurs is unfounded; strict design guidelines can entirely preserve a neighborhood's aesthetic heritage. Furthermore, retaining municipal permitting fees is a mistake. The infrastructure required for higher densities can be adequately funded through the expanded property tax base instead of permitting fees. Moreover, the popular notion that imposing rent control policies would alleviate the housing shortage is fundamentally flawed; such policies merely restrict new construction.

Analyze the dialogue between urban planner Lindo and economist Kael. Match each proposition below to the correct description of the speakers' stances on that proposition.

Although traditional legal theorists have dismissed customary community norms as too informal to serve as enforceable law, Professor Vance’s recent framework persuasively demonstrates that these unwritten codes frequently resolve property disputes with remarkable efficiency. Nonetheless, Vance overlooks the substantial risk of systemic bias inherent in non-codified adjudications, suggesting that while his model offers valuable insights, it cannot yet serve as a comprehensive substitute for statutory legal systems.

Which of the following best describes the author’s attitude toward Professor Vance’s framework?

Legal theorists have recently heralded the integration of neuroimaging data into criminal culpability assessments as a paradigm shift capable of displacing traditional doctrines of legal intent. Proponents argue that high-resolution neural scans can definitively establish whether an individual possessed volitional control during an unlawful act. While these technological developments undoubtedly offer a more refined empirical window into cognitive impairments than was previously available, sweeping assertions regarding the imminent obsolescence of normative legal standards remain premature. Neuroscientific evidence may delineate structural correlations with behavioral impulses, yet the foundational task of adjudication is fundamentally evaluative: translating neural observations into moral culpability requires philosophical judgments that empirical data alone cannot supply. Consequently, until evidentiary protocols establish rigorous criteria to bridge mechanistic causality and normative accountability, the enthusiasm of reformist jurists should be tempered with prudent restraint.

The author's attitude toward the prospect of neuroimaging displacing traditional legal standards of culpability can most accurately be described as which of the following?

In certain tropical savannas, whistling thorn acacia trees maintain a specialized relationship with aggressive ant colonies. Rather than relying solely on thorns to deter large herbivores, the acacia secretes a carbohydrate-rich nectar from specialized glands at the base of its leaves and provides hollow thorns as nesting sites. In exchange, the resident ants patrol the branches, stinging browsing herbivores and pruning climbing vines that attempt to overgrow the canopy. The ants do not actively cultivate the tree's health; rather, their defensive behavior is an incidental byproduct of guarding their food source and shelter. When browsing mammals are absent, acacias reduce nectar production, prompting the ants to abandon the trees, which subsequently causes the trees to decline rapidly due to unchecked encroaching vegetation.

Which of the following scenarios is most analogous to the relationship between the acacia trees and the resident ant colonies described in the passage?

Consider the following excerpt from an essay on environmental monitoring:

"In recent years, several marine biologists have proposed using acoustic imaging to map deep-sea benthic ecosystems, arguing that acoustic sensors eliminate the habitat disruption caused by physical trawling. While this acoustic approach certainly offers a welcome and minimally invasive alternative for broad geographic surveys, researchers must remain cognizant of its significant resolution limits when identifying micro-invertebrate species."

Statement: Based on the excerpt, the author's attitude toward the proposal to use acoustic imaging is best characterized as outright rejection.

Linguist: Certain structuralist theorists maintain that in any grammatically complete natural language, the basic word order of a declarative sentence must place the subject before the object in order to ensure the unambiguous assignment of syntactic roles. However, this theoretical constraint is unwarranted. In Hixkaryana, a naturally evolved language spoken in the Amazon basin, the standard sentence structure places the object first, followed by the verb, and finally the subject, yet native speakers communicate complex syntactic roles without any ambiguity.

Which one of the following most accurately describes the role played in the linguist's argument by the reference to the standard sentence structure of Hixkaryana?

Aris: The moral justification for intellectual property laws rests solely on their utility in maximizing aggregate social welfare. Because granting exclusive rights inherently limits public access to new innovations, such legal protections are morally legitimate only if the specific innovation would have remained entirely unrealized without the prospect of those exclusive rights.

Brie: Your utilitarian perspective is fundamentally incomplete because it dismisses natural rights. A legal system's moral authority depends intrinsically on securing individuals' rights to the products of their own labor. Consequently, an inventor possesses a moral claim to exclusive rights over their creation, regardless of whether enforcing those rights causes a net reduction in aggregate social welfare.

Which one of the following most accurately expresses the point at issue between Aris and Brie?

Consider the following excerpt from an art history discussion:

"While some art historians have argued that the late-nineteenth-century tonalist painters merely produced derivative, sentimentalized landscape studies lacking structural rigor, this characterization overlooks how their deliberate suppression of high-contrast outlines functioned as an intentional subversion of academic formalism. Far from retreating into nostalgic indulgence, these painters engaged in a sophisticated aesthetic inquiry into the limits of atmospheric depiction, even if their technical experiments occasionally succumbed to compositional monotony."

Statement: Based on the passage, the author's attitude toward the tonalist painters' work is best characterized as appreciative recognition tempered by a specific aesthetic reservation.

Review the following passage outlining an urban planner's stance on city infrastructure. Identify the exact logical function of each excerpted statement by matching it to the correct structural description.

Urban Planner: The conventional view among municipal leaders is that widening highways is the best way to reduce traffic congestion. However, the phenomenon of induced demand ensures that expanding road capacity simply encourages more people to drive. Consequently, constructing wider roads is a futile strategy for alleviating gridlock. Furthermore, our city's infrastructure budget is severely constrained this year. Therefore, rather than expanding highways, we must redirect our remaining transportation funds toward developing comprehensive public transit networks.

Passage A
The profound technological and predictive success of modern physics presents a persistent philosophical puzzle: how do our mature scientific theories manage to be so extraordinarily accurate in their descriptions of the natural world? Scientific realism provides the most compelling framework for this, offering the only explanation that does not render the astonishing success of science a massive, inexplicable coincidence. The classic "no miracles" argument posits that the theoretical, unobservable entities invoked by mature sciences—such as quarks, electromagnetic fields, and spacetime curvature—must genuinely exist in reality. Furthermore, our scientific theories must be at least approximately true descriptions of these entities and their interactions. If these unobservable entities were mere instrumental fictions, the precise empirical predictions generated by relying on them would represent a statistical impossibility. Realists readily concede that the history of science is littered with discarded theories whose posited unobservable entities, such as phlogiston, caloric fluid, or the luminiferous aether, were later deemed entirely non-existent. Anti-realist critics frequently use this historical graveyard to fuel the pessimistic meta-induction argument, which suggests our current theories will likely meet the same fate. However, realists counter that while the specific ontological claims of those past theories were ultimately abandoned, their underlying structural architectures and mathematical frameworks are frequently retained. These mathematical structures are routinely subsumed into broader successor theories, demonstrating that science exhibits a cumulative, rational progression toward an ultimate truth about the unobservable universe, rather than a sequence of disjointed paradigms.

Passage B
Constructive empiricism offers a leaner, more epistemically cautious interpretation of the scientific endeavor, explicitly rejecting the realist’s demand for absolute ontological commitment. According to this view, the primary aim of science is not to uncover the hidden, literal truth about unobservable realms, but simply to construct theories that are empirically adequate. An empirically adequate theory is one that correctly captures, predicts, and saves observable phenomena. When a scientific theory successfully predicts complex outcomes, we need not take the perilous inductive leap of assuming its unobservable theoretical postulates correspond to physical reality. Instead, the predictive success of our current scientific theories is best understood through a Darwinian evolutionary analogy: we are left with highly successful theories today precisely because the empirically unfit ones were relentlessly tested and discarded by the scientific community over centuries. Thus, a theory's predictive success merely indicates its high degree of empirical fitness and observational reliability, not its absolute metaphysical truth. Furthermore, committing to the physical existence of every unobservable entity posited by a theory introduces unnecessary and burdensome metaphysical baggage that science does not require to function effectively. A working scientist can fully utilize the complex mathematical apparatus of quantum mechanics to engineer sophisticated technologies, such as lasers and quantum computers, without ever needing to assert that a "probability wave function" is a real, physical entity existing in the universe, rather than merely a profoundly useful, abstract calculating device.

It can be inferred from the passages that both authors would be most likely to agree with which one of the following statements concerning the "unobservable entities" mentioned in the texts?

In microbial ecology, the formation of resilient biofilms is governed by quorum sensing—a decentralized intercellular communication mechanism mediated by autoinducer signaling molecules. When individual bacteria reach a critical local population density, the accumulation of autoinducers triggers synchronized transcription of virulence factors and extracellular matrix synthesis, transitioning free-swimming planktonic cells into an impermeable, highly structured collective. To neutralize this pathogenic state without exerting the evolutionary selection pressure associated with conventional bactericidal agents, researchers have developed quorum quenching strategies. Rather than destroying the bacteria, quorum quenching employs catalytic enzymes to degrade autoinducer molecules before the critical density threshold is registered. Consequently, individual bacterial cells survive and replicate normally, but the collective communication network is silenced, precluding the coordinated phase transition into a biofilm.

Now consider an automated transit management network in which connected autonomous vehicles broadcast local proximity pings. When ping density across a roadway segment crosses a designated threshold, roadside transceivers trigger an automated priority protocol that seals highway access ramps and converts general lanes into an exclusive rapid-transit corridor. To prevent localized bottlenecks without disabling individual vehicles, municipal controllers install beacon-attenuation filters that dampen proximity pings before local transceivers record critical density surges, allowing ordinary vehicle flow to continue while preventing the automated corridor lockout.

Based on the relational dynamics described in the passage, match each component of the microbial quorum sensing system to its functionally analogous component in the automated transit network.

An autonomous vehicle's navigation system will pass the stringent Level 5 redundancy audit only if it incorporates dual-band LIDAR sensors, and operates with either a decentralized processing matrix or a quantum-encrypted communication link.

Which one of the following logically follows from the statement above?

Consider the following passage:

In marine reef ecosystems, cleaner wrasse establish cleaning stations where client fish visit to have external parasites removed. Although cleaner wrasse primarily consume parasites, they occasionally "cheat" by biting the client fish's nutrient-rich protective mucus layer. Non-predatory client fish manage this behavior through partner choice: if bitten, a client fish will promptly swim away and seek future service from a competing cleaning station nearby. However, large predatory client fish never experience cheating by cleaner wrasse, because the wrasse recognize that biting a predator risks immediate lethal retaliation.

Based on the relationships and behavioral dynamics described in the passage, match each biological component from the reef ecosystem with its most structurally analogous counterpart in a commercial service marketplace.

Consider the following passage excerpt:

"Paleobiologists investigating the enigmatic Ediacaran fossil Dickinsonia have long grappled with its phylogenetic placement, oscillating between classifying it as an early metazoan, a lichen-like organism, or a representative of an extinct kingdom altogether. While Adolf Seilacher's 'Vendobiont' model—which interpreted these organisms as unsegmented, fluid-filled structures devoid of modern descendants—was valuable in challenging anthropocentric taxonomic assumptions, it relied excessively on macroscopic morphology preserved under idiosyncratic taphonomic conditions. Recent extraction of sterol biomarkers from exceptionally preserved Russian specimens has revealed a preponderance of cholesteroids, a chemical profile distinctive to animal tissue. Some researchers have hailed these organic geochemical findings as the definitive resolution to the Ediacaran conundrum. However, given the susceptibility of ancient lipid molecules to diagenetic migration and exogenous microbial contamination across half a billion years of geological alteration, accepting these findings without more stringent stratigraphic context and independent taphonomic controls is premature."

Statement: Based on the passage, the author's attitude toward the recent sterol biomarker research on Dickinsonia is best characterized as receptive to its preliminary taxonomic insights yet circumspect regarding the conclusiveness of the findings due to unresolved taphonomic vulnerabilities.

Recent attempts to reconstruct the acoustic properties of ancient Greek open-air theaters using ray-tracing computational algorithms have yielded intriguing preliminary models. Proponents celebrate these digital simulations as definitive evidence that audience tiered seating geometry was engineered specifically for speech clarity. Yet, while the computational models account well for direct reflection off stone surfaces, they overlook the substantial sound-absorbing effects of dense crowds and atmospheric temperature gradients. Consequently, while the digital approach provides a valuable initial framework, its conclusions regarding intentional ancient acoustic design must be regarded as provisional until empirical testing on occupied sites is conducted.

Based on the passage, the author's attitude toward using ray-tracing computational algorithms to assess ancient theater acoustics can best be described as which of the following?