Craft and Structure

Text 1
Many evolutionary biologists and behavioral economists have argued that the endowment effect—the tendency to value an item more highly simply because one owns it—is an ancient evolutionary adaptation. In a series of experiments, researcher Sarah Brosnan and colleagues demonstrated that chimpanzees ($Pan\ troglodytes$) exhibit a strong preference for keeping food items they already possess (such as peanut butter) over trading them for alternative foods of equal value (like fruit juice). Brosnan concludes that this bias is deeply ingrained, serving to minimize the risk of losing resources in unstable social environments where possession is the primary guarantor of ownership.

Text 2
Behavioral scientist Michael Tomasello challenges the view that the endowment effect in non-human primates is an innate evolutionary bias. Tomasello points out that chimpanzees in Brosnan’s experiments were tested in highly artificial, isolated laboratory settings. In natural group settings, chimpanzees frequently engage in food sharing and competitive theft, where holding onto an item does not guarantee its security. Tomasello argues that Brosnan's findings reflect a temporary strategy learned within the structured confines of human-controlled testing rather than a hardwired evolutionary adaptation that dictates wild chimpanzee behavior.

Based on Text 2, how would Tomasello most likely characterize the chimpanzees' reluctance to trade food items in Brosnan's experiments?

Stepwells (baoris) of western India are celebrated for their intricate subterranean architecture. Early European visitors often described them primarily as ornamental monuments showcasing local craftsmanship, disregarding their functional design. However, these structures actually served crucial utilitarian purposes in arid regions, functioning as public water reservoirs, social gathering spaces, and microclimate regulators. To achieve this thermal regulation, builders constructed deep, shaded galleries that trapped dense, cold air while shielding the water from direct sunlight. By integrating structural engineering with community utility, stepwells represented a highly sophisticated vernacular response to extreme seasonal climates.

Which choice best describes the function of the underlined sentence in the text as a whole?

In the early days of modern environmental policy, theorists often argued that ecological preservation and industrial development were fundamentally incompatible, suggesting that progress in one domain inevitably came at the expense of the other. However, contemporary sustainable development models demonstrate that a nation does not need to ______ its long-term economic growth in order to effectively safeguard its natural resources.

Which choice completes the text with the most logical and precise word or phrase?

Which choice completes the text with the most logical and precise word or phrase?

Lichenometry is a geomorphic dating technique that uses the growth rate of lichens to determine the age of exposed rock surfaces, particularly in glacial environments. Because lichen growth is highly sensitive to local microclimatic conditions such as moisture and sunlight, researchers must establish a precise local growth curve for each target species. To construct this curve, scientists measure lichens on surfaces of known historical ages, such as gravestones or dated bridge abutments. By establishing this baseline, researchers can then estimate the exposure age of undated glacial moraines with greater confidence, thereby reconstructing past glacial retreat patterns with decadal resolution.

Which choice best describes the function of the underlined sentence in the text as a whole?

Text 1
Some biologists argue that the primary evolutionary benefit of a zebra’s stripes is thermoregulation. According to this model, the alternate absorption of heat by dark stripes and reflection by light stripes creates micro-convective air currents across the zebra's body. These currents supposedly cool the animal, allowing it to forage in intense equatorial heat where non-striped equids might suffer heat stress. Proponents of this view point to variations in stripe definition across different geographical regions, noting that stripe patterns are often most distinct in the hottest areas of a zebra's range.

Text 2
Experimental studies by Tim Caro and colleagues suggest that zebra stripes serve primarily to deter biting insects. By placing striped blankets on horses, researchers observed that tabanid flies approached striped surfaces at normal speeds but failed to decelerate properly, often bumping into the animals or veering away without landing. Caro argues that because biting flies transmit fatal diseases, the selective pressure to avoid them is far more critical to survival than thermoregulatory efficiency. Furthermore, he notes that several non-striped equid species thrive in equally hot African environments without experiencing significant heat stress.

Based on the passages, how would the author of Text 2 most likely respond to the geographic evidence cited by the proponents of the thermoregulation hypothesis in Text 1?

In medieval Europe, scribes favored iron-gall ink for its durability and deep black color, which was achieved through a chemical reaction between iron sulfate and tannic acid extracted from oak galls. Although the ink was highly resistant to fading, its acidic nature posed a significant threat over time. As the ink aged, it catalyzed the degradation of the parchment or paper underneath, a process known as ink-gall decay that often resulted in physical perforations where the writing once was. Consequently, modern conservators must employ specialized non-aqueous treatments to neutralize the acidity without dissolving the remaining ink. This allows libraries to preserve these historical documents for future scholarly analysis.

Which choice best describes the function of the underlined sentence in the text as a whole?

For decades, linguistic anthropologists assumed that the structural features of a language had no influence on the spatial reasoning of its speakers. However, recent studies of languages that use absolute cardinal directions (like north and south) instead of relative terms (like left and right) have demonstrated that language can indeed shape cognitive mapping. By showing that speakers of these absolute languages maintain an orientation that is remarkably stable across unfamiliar environments, researchers have ______ the long-held belief that language structure and spatial cognition are completely separate.

Which choice completes the text with the most logical and precise word or phrase?

Roman dodecahedrons—small, hollow bronze objects with twelve pentagonal faces and circular holes of varying sizes—have puzzled archaeologists for centuries. Various hypotheses suggest they functioned as candle holders, surveying instruments, or even knitting tools. However, the discovery of a dodecahedron in a buried hoard alongside valuable coins and jewelry suggests that these objects held significant monetary or status value. This finding has led some researchers to propose that, regardless of their practical utility, dodecahedrons were prized possessions, possibly serving as symbols of wealth or prestige. Consequently, studies focusing solely on their mechanical utility may overlook the socio-economic context of their preservation.

Which choice best describes the function of the underlined sentence in the text as a whole?

Text 1
Beaver reintroduction programs are increasingly promoted as a primary, low-cost method for restoring degraded freshwater ecosystems. Proponents highlight that the physical dams constructed by beaver colonies reduce stream velocity, decrease erosion, and create wetland habitats that support a wide range of aquatic and terrestrial species. By recharging groundwater reservoirs and raising local water tables, beaver dams are believed to buffer vulnerable riparian ecosystems against drought, thereby establishing self-sustaining environments that require minimal ongoing human management or intervention.

Text 2
Ecologist Sarah Vance and her colleagues agree that beaver dams can increase localized biodiversity in the short term, but they caution against viewing reintroduction as a comprehensive ecological cure-all. Their research indicates that in many stream systems, beaver dams block critical migration routes for native fish and trap sediment to the point of altering downstream nutrient flows. Additionally, the impounded water behind dams can absorb solar radiation, raising stream temperatures to levels that threaten sensitive cold-water species. Thus, Vance argues that without careful, case-by-case site assessment and active human oversight, reintroductions can degrade habitats for the very species conservationists aim to protect.

Based on the passages, how would the author of Text 2 most likely characterize the view of the "proponents" presented in Text 1?

Text 1
Many astrobiologists argue that the seasonal fluctuations of methane detected in Mars’s atmosphere are strong indicators of active microbial life beneath the Martian surface. Because methanogenic microbes on Earth release methane as a metabolic byproduct, these researchers hypothesize that similar underground organisms are responsible for the Martian gas. They point to the sharp, localized spikes in methane levels as evidence of biological activity, arguing that abiotic geological processes would result in a far more uniform, steady release of gas over time.

Text 2
Geologist Elena Vance and colleagues argue that atmospheric methane on Mars can be entirely explained by serpentinization, an abiotic reaction between water and olivine rocks deep within the crust. Vance's team simulated Martian subsurface conditions and demonstrated that this geochemical process occurs in bursts when shifting tectonic stresses fracture Martian rocks, exposing new mineral faces to trapped water. Consequently, Vance cautions against interpreting sudden spikes in Martian methane as signs of life, noting that geological stress cycles are naturally episodic rather than continuous.

Based on the passages, how would Elena Vance and colleagues (Text 2) most likely characterize the argument made by the astrobiologists (Text 1) regarding the significance of Mars's localized methane spikes?

Which word completes the text with the most logical and precise meaning?

In 1840, Great Britain introduced the Uniform Penny Post, a system that allowed letters to be sent anywhere in the country for a flat rate of one penny, paid by the sender. Previously, postal rates were high, calculated by distance and page count, and paid by the recipient, which restricted correspondence to the wealthy. By making communication cheap and accessible, the reform catalyzed a massive increase in personal letter-writing among the working class. Consequently, this shift not only democratized communication but also stimulated literacy rates and fostered national cohesion across previously isolated rural and urban communities.

Which choice best describes the function of the underlined sentence in the text as a whole?

Text 1
For decades, evolutionary biologists have argued that emotional tearing, or crying, evolved primarily as a social signaling mechanism. Because human infants are exceptionally vulnerable, shedding tears serves as a visual and chemical distress signal that elicits immediate caregiving behaviors from adults. Among adults, crying signals vulnerability and downregulates aggression, fostering trust and cooperative bonds within social groups. Consequently, proponents of this view maintain that the primary evolutionary function of crying is strictly interpersonal, serving to recruit support and strengthen social cohesion.

Text 2
While the social benefits of crying are well-documented, focusing exclusively on interpersonal communication overlooks a critical physiological dimension. Research shows that emotional tears contain high levels of stress hormones and toxins, and the act of crying triggers the release of oxytocin and endorphins, which promote emotional recovery and return the body to a state of homeostasis. In studies where individuals cried in isolation, they reported significant reductions in psychological distress. Thus, crying also functions as an essential, self-soothing regulatory system that operates independently of any social context.

Based on the passages, how would the author of Text 2 most likely respond to the claim in Text 1 that the primary evolutionary function of crying is 'strictly interpersonal'?

Complete the text with the most logical and precise word.

For decades, cognitive scientists assumed that the human brain processes reading by translating written letters into their corresponding sounds. However, in a 2021 study, neuroscientist Elena Rostova utilized high-resolution fMRI scans to observe brain activity in real-time as subjects read both real words and pseudowords. Rostova discovered that the visual word form area (VWFA)—a region previously thought to be a simple visual relay station—activated significantly faster when subjects encountered familiar words compared to phonetically regular pseudowords. This finding suggests that the brain possesses a specialized, direct visual pathway for reading that bypasses the auditory translation process entirely for familiar terms. Consequently, researchers are beginning to re-evaluate traditional phonetic instruction models in early childhood education.

Which choice best describes the function of the underlined sentence in the text as a whole?

Text 1
Many art historians argue that the Upper Paleolithic cave paintings in Lascaux, France, were created primarily for ritualistic or shamanic purposes, serving as sacred spaces to facilitate hunting magic. According to this view, the detailed depictions of game animals were intended to supernaturally ensure successful hunts. Proponents point to the deep, inaccessible locations of the paintings within the caves as evidence that they were not meant for everyday viewing, but rather for private, mystical ceremonies.

Text 2
Conversely, archaeologist Dale Guthrie suggests that the Lascaux cave art represents a secular, mundane activity: the creative output of Paleolithic adolescents. Guthrie argues that the abundance of drawings depicting large, dangerous mammals, along with incomplete sketches and graffiti-like marks, matches the themes and style typical of youth art across cultures. Furthermore, fossilized footprints found in the caves belong predominantly to adolescents and children, indicating these spaces were frequently accessed by youths rather than reserved exclusively for select spiritual leaders.

Based on the passages, how would Guthrie (Text 2) most likely respond to the claim of the art historians in Text 1 regarding the significance of the cave paintings' locations?

In the early twentieth century, astronomers struggled to determine the distance to remote nebulae, with many arguing that these structures resided within our own Milky Way galaxy. To resolve this debate, Edwin Hubble identified Cepheid variables—stars whose periodic fluctuations in luminosity are directly related to their intrinsic brightness—within the Andromeda Nebula. By applying Henrietta Swan Leavitt's period-luminosity relation to these stars, Hubble calculated that Andromeda was located roughly 900,000 light-years away. This measurement far exceeded the estimated size of the Milky Way, conclusively proving that Andromeda was a distinct galaxy. Consequently, Hubble's findings fundamentally expanded the known boundaries of the universe.

Which choice best describes the function of the underlined sentence in the text as a whole?

Many ecologists have long argued that the elaborate warning calls of certain avian species when predators approach are altruistic, intended to alert others of danger. However, recent evolutionary models suggest that these vocalizations are primarily selfish actions meant to startle the predator or deflect attention; thus, any protective effect on the rest of the flock is entirely _______

Which choice completes the text with the most logical and precise word or phrase?

Minoan wall paintings, or frescoes, from the Bronze Age site of Akrotiri often depict vivid scenes of nature and ritual, rendered in vibrant mineral pigments. While early scholars interpreted these works as purely decorative expressions of a peace-loving maritime society, recent archaeological analyses suggest they served a more complex sociopolitical purpose. Specifically, researchers have identified recurring geometric borders that separate distinct narrative panels within the murals. These borders, far from being minor embellishments, actually delineate boundaries between different social classes or ranks depicted in the adjacent scenes. Consequently, the frescoes are now understood to have functioned as visual codifications of social hierarchy rather than mere aesthetic ornaments.

Which choice best describes the function of the underlined sentence in the text as a whole?