All practice questions

Although the giant corpse flower (*Amorphophallus titanum*) is famous for its massive size, the unique scent of the blossom remains its most notorious feature. Because ______ is produced by a complex mixture of sulfur-based chemical compounds that mimic organic decay, visitors to botanical gardens often compare the overwhelming odor to rotting meat.

Which choice completes the text so that it conforms to the conventions of Standard English?

While researching the Denisovans, a student took the following notes:
- Denisovans are an extinct group of archaic humans.
- In $2008$, Russian paleontologists discovered a juvenile finger bone fragment in Denisova Cave, located in the Altai Mountains of Siberia.
- In $2010$, geneticist Svante Pääbo and his team sequenced the mitochondrial DNA (mtDNA) extracted from the bone.
- The sequencing revealed that Denisovans were genetically distinct from both Neanderthals and modern humans.
- The Altai Mountains region has since yielded several other Denisovan specimens, including teeth and a jawbone.

The student wants to write a sentence that emphasizes both the specific cave where the first Denisovan fossil was discovered and the year its mitochondrial DNA was sequenced. Complete the sentence by filling in the blanks.

The function $f$ is defined by $f(x) = 2x^2 - 12x + c$, where $c$ is a constant. In the $xy$-plane, the graph of $y = f(x)$ has a vertex at $(h, 5)$, where $h$ is a constant. What is the value of $c$?

For decades, many resource economists argued that privatizing communal pastures and fisheries is the only way to prevent overexploitation. They asserted that individual owners, motivated by personal profit, would naturally preserve the long-term viability of their assets. _______, subsequent empirical research by political scientist Elinor Ostrom demonstrated that local communities can successfully manage shared resources without private ownership. Through cooperative rules and self-organization, these groups often prevent depletion more effectively than private enterprises do.

Which choice completes the text with the most logical transition?

In the conservation of historical oil paintings, technicians frequently apply synthetic aldehyde resins to stabilize fragile paint layers. These resins offer high resistance to yellowing and photochemical degradation over time. _______ the low viscosity of these synthetic mixtures allows them to penetrate deeply into micro-cracks, effectively consolidating the paint film without altering the artist's original brushwork.

Which choice completes the passage with the most logical transition?

While researching *Castorocauda lutrasimilis*, a student takes the following notes:
* *Castorocauda lutrasimilis* is an extinct mammaliaform species that lived during the Middle Jurassic period.
* In 2006, paleontologist Qiang Ji and his team discovered a well-preserved fossil of the species in Inner Mongolia, China.
* The fossil revealed webbed feet and a broad, scaly tail, indicating adaptation to a semi-aquatic lifestyle.
* Previously, scientists believed that Jurassic mammaliaforms were strictly land-dwelling.
* The discovery of *C. lutrasimilis* demonstrated that early mammal relatives adapted to diverse aquatic environments much earlier than once thought.

The student wants to summarize the discovery and its significance. Which choice most effectively uses information from the given notes to accomplish this goal?

While researching science fiction subgenres, a student took the following notes:

* Cyberpunk, which emerged in the 1980s, is a subgenre that depicts a dystopian future of high technology and corporate control.
* Cyberpunk aesthetics typically feature dark, neon-lit urban environments and rain-slicked streets.
* Solarpunk, which emerged in the 2010s, is a subgenre that envisions an optimistic future of environmental sustainability.
* Solarpunk aesthetics emphasize bright, sunlit landscapes and buildings integrated with plant life.

The student wants to contrast the visual aesthetics of the two subgenres. Which choice most effectively uses information from the given notes to accomplish this goal?

The function $f$ is defined by $f(x) = |x - 2| - 3$. The function $g$ is defined by $g(x) = -f(x + 1) + 2$. What is the maximum value of $g(x)$?

A fiber-optic internet connection downloads data at a constant rate of $40$ megabits per second. There are $8$ megabits in $1$ megabyte and $1,000$ megabytes in $1$ gigabyte. At this rate, how many gigabytes of data can the connection download in $1$ hour?

The graph of the quadratic function $f(x) = x^2 - 4x + 7$ is translated $3$ units to the right and $2$ units down in the $xy$-plane to form the graph of the function $g(x) = x^2 + px + q$, where $p$ and $q$ are constants. What is the value of $q$?

While preparing a presentation on exoplanet discovery missions, a student took the following notes:

* The Kepler Space Telescope was launched in 2009 to search for exoplanets orbiting other stars.
* Kepler's observation strategy involved continuously monitoring a single, fixed field of view in the Cygnus and Lyra constellations.
* The Transiting Exoplanet Survey Satellite (TESS) was launched in 2018 to search for exoplanets.
* TESS's observation strategy involves surveying nearly the entire sky by dividing it into 26 different sectors, with each sector observed for 27 days.
* Kepler focused on distant stars to determine how common Earth-like planets are in the galaxy.
* TESS focuses on nearby, bright stars to identify targets for detailed atmospheric characterization.

The student wants to contrast the observation strategies of the Kepler Space Telescope and TESS. Which choice most effectively uses information from the notes to accomplish this goal?

A researcher records the daily high temperatures, in degrees Fahrenheit, for 9 consecutive days in a certain city: $72$, $74$, $75$, $77$, $78$, $79$, $81$, $82$, and $83$. On the 10th day, the temperature was $x$ degrees Fahrenheit. If the median of the 10-day dataset is $78.5$ degrees Fahrenheit, which of the following could be the value of $x$?

Before drafting a report on the Uluburun shipwreck, a student compiled these notes:

* The Uluburun shipwreck is a Late Bronze Age vessel dating to the late 14th century BCE.
* It was discovered in 1982 off the coast of Kas, Turkey.
* The ship was carrying a vast cargo of raw materials, including copper and tin ingots.
* Archaeologists recovered 10 tons of copper and 1 ton of tin from the site.
* The $10:1$ ratio of copper to tin found on the ship corresponds directly to the historical alloy ratio required to produce bronze.

The student wants to emphasize the shipwreck's cargo and the specific ratio of its key metallic components. Which choice uses information from the notes to meet this goal?

In marine biology, researchers study how organisms adapt to extreme environments. The bioluminescent signaling of bathypelagic organisms, which serves to attract mates or deter predators in the pitch-black depths of the ocean's midnight zone, _______ a crucial mechanism for survival. Without these specialized chemical reactions, species would struggle to reproduce or avoid predation in the vast, lightless habitat.

Which choice completes the text so that it conforms to the conventions of Standard English?

In arid regions of western India, ancient stepwells, known as *baoris*, served as multi-story subterranean water-harvesting systems. Beyond their primary function of collecting monsoon rainwater, these structures were designed to provide relief from the intense summer heat. Architecturally, stepwells descend deep into the earth, which shields the lowest pool of water from direct sunlight and wind. Because of this subterranean design, evaporation is significantly reduced compared to open reservoirs, allowing the pooled water to remain relatively cool throughout the dry season. Additionally, the masonry galleries built along the descending steps create shaded, ventilated zones where travelers and local communities could gather to escape the heat.

Based on the text, what is one reason why the water in a *baori* remains cooler than that in an open reservoir?

The bacterium *Deinococcus radiodurans* is renowned for its ability to survive extreme doses of ionizing radiation that would be lethal to most other organisms. While radiation shatters the bacterium’s chromosome into hundreds of fragments, *D. radiodurans* can assemble these pieces back into a functional genome within hours. Researchers have determined that this rapid repair is facilitated by the bacterium's ring-like nucleoid structure, which keeps the damaged DNA fragments in close spatial alignment. This structural arrangement prevents the fragments from diffusing away from one another, allowing repair proteins to efficiently rejoin the correct segments in their original order.

According to the text, how does the structure of *Deinococcus radiodurans* support its genome repair process?

In neurobiology, the synchronization of neural oscillations across disparate regions of the cerebral cortex _______ critical for sensory integration and cognitive processing. Although researchers once viewed these complex electrical patterns as mere byproducts of localized brain activity, recent multi-electrode array studies demonstrate that this precise timing coordinates communication between distant neural networks during task execution.

Which choice completes the text so that it conforms to the conventions of Standard English?

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?

While researching the ancient city of Thonis-Heracleion, a student takes the following notes:
* Thonis-Heracleion was an ancient Egyptian port city that served as a vital hub for international trade and taxation.
* Over centuries, soil liquefaction, earthquakes, and rising sea levels caused the city to sink into the Mediterranean Sea.
* In 2000, underwater archaeologist Franck Goddio and his team rediscovered the submerged ruins of the city.
* The team recovered well-preserved artifacts, including colossal statues, coins, and temple ruins, which offered insights into the city's daily life.

The student wants to summarize the history and rediscovery of Thonis-Heracleion. Which choice most effectively uses information from the given notes to accomplish this goal?

Although she was often overshadowed by her husband Robert, the nineteenth-century German composer Clara Schumann wrote some of her most complex and innovative musical works specifically for the piano. During the _______ lifetime, these compositions were celebrated by audiences across Europe for their emotional depth, establishing her legacy as a key figure of the Romantic era.

Which choice completes the text so that it conforms to the conventions of Standard English?