Organization, Unity, and Cohesion

Paragraph 1

In the late nineteenth century, the bicycle underwent a dramatic redesign that transformed it from a niche sporting toy into a mainstream mode of transportation. Prior to this era, riders relied on the "ordinary" bicycle, which featured a giant front wheel and posed a constant risk of severe crashes. The introduction of the "safety bicycle" in 1885 changed everything. With its equal-sized wheels, chain-driven rear wheel, and pneumatic tires, it offered a stable, low-to-the-ground ride that was accessible to almost anyone.

Paragraph 2

[1] Historically confined by strict chaperone rules and heavy Victorian garments, women found a newfound sense of freedom in cycling. Activist Susan B. Anthony famously declared that the bicycle had "done more to emancipate women than anything else in the world." The demand for mobility led directly to the rational dress movement, which replaced heavy petticoats with bloomers and shorter skirts, permanently altering women's fashion and social roles in public spaces.

Which choice, if inserted at [1], provides the most effective transition from the preceding paragraph to the paragraph that follows?

[1] For centuries, the dry climate of the library of Saint Catherine's Monastery in Egypt preserved layers of hidden writing on parchment pages known as palimpsests. [2] To reuse the expensive animal hides, medieval scribes frequently scraped away older texts, such as translations of ancient Greek medical treatises, before writing new prayers over them. [3] Modern conservationists, however, have begun employing multispectral imaging to photograph these pages under various wavelengths of light, exposing the faint traces of iron-gall ink left behind by the original authors. [4] These manuscripts are kept in highly controlled environments where temperature and humidity are regulated to prevent the parchment from warping. [5] By combining these digital images, researchers have successfully reconstructed lost works, providing scholars with unprecedented access to classical philosophy.

The writer is considering deleting Sentence 4 from the preceding paragraph. Should the sentence be kept or deleted?

A student is writing an essay about the history of everyday inventions. Read the paragraph and answer the question that follows.

During a freezing winter ride on a New York City streetcar in 1902, Mary Anderson noticed a recurring problem. The driver had to keep the front window open to wipe away the accumulating sleet, which chilled the passengers [1] inside. Instead, she began sketching a design for a hand-operated squeegee that could clear the glass from within the vehicle.

Which option for the underlined portion marked [1] establishes the correct logical connection and uses proper punctuation?

The writer wants to organize the following sentences to logically describe the step-by-step process of how leafcutter ants cultivate their food source. Arrange the sentences to achieve this goal, starting with the initial gathering of materials and ending with the final consumption.

In 1977, NASA launched the twin Voyager spacecraft, each carrying a copper phonograph record plated in gold. A committee chaired by Carl Sagan assembled a diverse collection of sights and sounds to convey a story of our world to any extraterrestrial travelers who might encounter the probes.

The committee faced a daunting challenge, however, in deciding how to represent human biology and civilization without relying on written language. To address this, they included a series of diagrams encoded in analog signals that could be converted into images. These diagrams depicted anatomical drawings of humans, the structure of DNA, and our solar system's location relative to distant pulsars. [Sentence 15] The final selection of images sought to present a hopeful, peaceful portrait of Earth, deliberately omitting depictions of war, disease, or poverty.

The writer wants to insert a sentence at [Sentence 15] that transitions from the technical description of the scientific diagrams to the emotional or philosophical purpose of the record's visual gallery. Which choice most effectively accomplishes this goal?

The following paragraphs are from a draft of an essay about the invention of the windshield wiper. Arrange the paragraphs in the most logical order to make the essay cohesive.

The writer wants to arrange the following sentences to logically explain the transition from the military's tactile code to Louis Braille's refined reading system. Arrange the sentences in the most logical order.

Consider the following paragraph from an essay about astrophysics:

[1] In the summer of 1967, postgraduate student Jocelyn Bell Burnell began analyzing data from a radio telescope she had helped build. [2] While reviewing rolls of chart paper, she noticed a series of tiny, recurring peaks that she called "scruff." [3] These regular signals, repeating precisely every 1.33 seconds, did not match any known astronomical phenomena. [4] Her supervisor, Antony Hewish, initially dismissed the periodic fluctuations as terrestrial interference, such as passing cars or television signals. [5] Because the true nature of the cosmic clocks remained mysterious, the team jokingly labeled the source "LGM-1" for "Little Green Men."

To make the paragraph flow most logically, the sentence below should be inserted after which sentence?

"However, Bell Burnell’s meticulous testing of the receiver soon proved that the pulses were originating from far outside Earth’s atmosphere."

The passage below is from an article about the history of chemistry.

In 2009, chemist Mas Subramanian and his team at Oregon State University accidentally discovered YInMn Blue, a vibrant and highly stable blue pigment, while testing materials for electronics applications. The pigment's unique crystal structure absorbs red and green wavelengths while reflecting blue light, making it highly durable and resistant to fading. Consequently, scientists had long assumed that the synthesis of a durable, non-toxic inorganic blue pigment was chemically improbable.

Which choice provides the most logical transition from the preceding sentence to the underlined sentence?

High atop a rocky hill in Sion, Switzerland, the Basilique de Valère houses an extraordinary musical relic: an organ constructed in the early fifteenth century. Unlike most medieval instruments, which have been silenced by decay or altered beyond recognition by subsequent restorations, this organ remains playable. Organ builders in the region often utilized local spruce and pine, which grew slowly in the high altitude and possessed dense acoustic properties. This longevity is largely due to a conservative restoration in 1954 that prioritized preserving the original Gothic pipework rather than updating the mechanism to suit modern tastes.

The writer is considering deleting the third sentence from the passage. Should the sentence be kept or deleted?

A student is writing an essay about nineteenth-century astronomy.

[1] In 1845, Irish astronomer William Parsons completed construction on the Leviathan of Parsonstown, a reflecting telescope with a six-foot aperture that was the largest in the world at the time. [2] With this massive instrument, Parsons observed and sketched the spiral structure of the Whirlpool Galaxy, a nebula then known as M51. [3] Prior to this discovery, astronomers debated whether nebulae were merely nearby clouds of gas or distant, independent 'island universes' consisting of stars. [4] The detailed drawings produced by Parsons provided crucial visual evidence that suggested a distinct, organized structure. [5] However, because the Leviathan's metal mirror was highly susceptible to tarnishing in the damp Irish climate, Parsons could only use the telescope on a few clear nights each year. [6] It took several decades of further observation with improved instruments to conclusively resolve the debate in favor of the island universe theory.

The writer is considering deleting Sentence 5 from the paragraph. Should the sentence be kept or deleted?

Although the Hoh Rain Forest is famous for its lush, moss-draped canopy, its auditory environment is equally remarkable. Acoustic ecologist Gordon Hempton has spent decades studying and protecting this natural soundscape. Hempton argues that quiet is not merely the absence of sound, but rather the presence of nature's pristine voice. [X] For instance, a single commercial jet passing overhead can disrupt the acoustic sanctuary of an entire valley.

The writer wants to add a sentence at the marked position [X] to emphasize the extreme vulnerability of this natural quiet to human-made noise. Which choice most effectively accomplishes this goal?

Although standard light-emitting diodes (LEDs) had been producing red and green light since the 1960s, a blue LED remained notoriously difficult to create. Without a blue light source, scientists could not combine the primary colors of light to produce white light, stalling the development of energy-efficient household illumination. [1] Consequently, researchers at chemical companies and universities continued to focus their efforts on gallium nitride, a material widely considered too volatile to work with.

Which choice most effectively establishes a logical transition between the second and third sentences of the passage?

The paragraph below contains numbered sentences.

[1] In 1887, construction began on the Eiffel Tower in Paris as the entrance arch for the 1889 World's Fair. [2] Over the next two years, hundreds of workers assembled the massive iron structure piece by piece. [3] After its completion, the tower was initially criticized by many prominent French artists and intellectuals. [4] Today, however, it is celebrated as a masterpiece of modern architecture and stands as a global symbol of France.

To make the paragraph flow most logically, where should the following sentence be placed?

'These critics called the iron design an eyesore that would ruin the beauty of the Parisian skyline.'

The paragraphs below are from an essay about the history of refrigeration. Arrange the paragraphs in the most logical order to create a cohesive passage.

The writer is drafting an essay about the history of currency and wants to organize the following sentences to logically explain the transition from using physical metal coins to using paper credit. To achieve this goal, in what order should the sentences be arranged?

The following paragraphs are from a draft of an essay about the invention of Velcro.

[1] In 1941, Swiss electrical engineer George de Mestral went on a hunting trip in the Alps with his dog. Upon returning home, he noticed that both his pants and his dog's fur were covered in tiny cockleburs from the burdock plant. Intrigued by how tenaciously they clung to the fabric, he examined them under a microscope. He discovered that the burrs were covered in hundreds of microscopic hooks that caught on the tiny loops of thread in his trousers.

[2] Realizing the potential for a new type of fastener, de Mestral set out to replicate this hook-and-loop mechanism synthetically. After years of experimenting with various fabrics, he found that nylon, when sewn under infrared light, formed stiff loops that could be cut to create hooks. He patented this synthetic replica in 1955 and named it Velcro.

[3] Today, hook-and-loop fasteners are used in everything from apparel and athletic gear to aerospace equipment. NASA, in particular, popularized the product during the Apollo missions, utilizing it to secure objects in zero-gravity environments. Despite its initial rejection by the fashion industry, this Swiss-engineered innovation became a multi-million-dollar global success.

[4] Before the invention could become a household name, however, de Mestral had to convince manufacturers of its utility. The early prototypes were hand-woven and struggled to maintain their grip after multiple uses. It took almost a decade of refining the manufacturing process to produce a fastener that was both durable and cheap to mass-produce.

For the sake of the logic and cohesion of the essay, Paragraph 4 should be placed where?

[1] Sourdough bread relies on a wild yeast starter rather than commercial baker's yeast. [2] This starter, a fermenting mixture of flour and water, captures wild yeasts and beneficial bacteria from the environment. [3] Over time, these microorganisms produce carbon dioxide and lactic acid, giving the bread its characteristic rise and sour flavor. [4] Many commercial bakeries prefer using dry active yeast because it is faster and more predictable. [5] Once the starter is active, it must be regularly fed with fresh flour and water to keep the yeast alive.

The writer is considering deleting Sentence 4 from the paragraph. Should this sentence be kept or deleted?

[1] In the mid-nineteenth century, the construction of the transcontinental railroad transformed the American West, linking the Atlantic and Pacific coasts. [2] The project relied heavily on the labor of thousands of Chinese immigrants, who faced dangerous working conditions and severe discrimination. [3] These workers blasted tunnels through the granite of the Sierra Nevada and laid tracks across the desolate Great Basin. [4] Meanwhile, in the eastern United States, steam locomotives were rapidly replacing canal boats as the primary means of moving freight. [5] Despite their critical contributions, the Chinese workers were excluded from the celebratory photographs taken at Promontory Summit upon the railroad's completion.

The writer is considering deleting Sentence 4 from the paragraph. Should this sentence be kept or deleted?

The following paragraph is from an essay about the history of everyday inventions.

[1] In 1849, American inventor Walter Hunt was twisting a piece of brass wire while trying to think of a way to pay off a fifteen-dollar debt. [2] He realized that by coiling the wire at the base, it would spring back when released. [3] To protect the user, he added a clasp at the top to cover the sharp point. [4] Hunt patented his design as the safety pin and sold the rights for four hundred dollars, quickly settling his debt.

To make this paragraph most logical, where should the following sentence be placed?
"This clever design feature not only prevented accidental pricks but also secured the pin in place."