ISEE Upper Level Quiz: Supporting Evidence

Which piece of evidence best supports the author's main argument?

 The author argues that Florence Nightingale’s impact on medicine came as much from statistics as from bedside care. While she is often remembered for nursing wounded soldiers during the Crimean War (1853–1856), the author concludes that her most lasting contribution was persuading governments to reform sanitation through data. The passage explains that poor ventilation, contaminated water, and overcrowding caused preventable deaths in military hospitals.

 The author cites Nightingale’s reports to British officials after the war, which included carefully organized mortality figures. She used visual charts, including the famous “coxcomb” diagrams, to show that disease killed far more soldiers than battlefield injuries. Secondary historians quoted in the passage argue that these clear comparisons made it difficult for policymakers to ignore the problem. As reforms were implemented, hospital death rates declined, supporting the author’s claim that data-driven advocacy produced measurable change.

 The passage also notes that Nightingale’s approach influenced later public health efforts. By treating sanitation as a matter of evidence and administration, she helped establish a model for reforms that could be evaluated. Therefore, the author concludes that Nightingale should be understood as a pioneer of applied statistics in service of human welfare.

The phenomenon of urban heat islands demonstrates how human development can significantly alter local climate conditions. Cities typically experience temperatures 2-5°C higher than surrounding rural areas due to several interconnected factors. Dark surfaces like asphalt roads and concrete buildings absorb more solar radiation than natural vegetation, storing heat during the day and releasing it at night. The lack of vegetation in urban areas eliminates the cooling effect of evapotranspiration, where plants release water vapor that cools the surrounding air. Additionally, urban geometry creates 'canyon effects' where buildings trap heat and reduce air circulation. The concentrated energy consumption in cities from air conditioning, transportation, and industry generates additional heat. Measurements taken in Phoenix, Arizona, show that downtown temperatures can be up to 9°C higher than the surrounding desert during summer nights. This temperature difference has serious implications for public health, as heat-related mortality increases dramatically during heat waves. Cities with extensive green spaces and reflective building materials show significantly reduced heat island effects compared to those dominated by dark, impervious surfaces.

Which evidence best supports the argument that urban design choices directly contribute to elevated city temperatures?

The decline of bee populations has become a major environmental concern in recent decades. Scientists have identified several factors contributing to this phenomenon, including habitat loss, pesticide use, climate change, and disease. Colony Collapse Disorder (CCD), first documented in 2006, has particularly puzzled researchers. In CCD, worker bees mysteriously abandon their hives, leaving behind the queen, larvae, and food stores. While pesticides were initially suspected as the primary cause, recent studies suggest that CCD results from a complex interaction of multiple stressors rather than a single factor. Some researchers argue that varroa mites, which weaken bee immune systems, make colonies more susceptible to other threats. Others point to monoculture farming practices that limit bees' access to diverse food sources. Despite ongoing research, the exact mechanisms behind CCD remain unclear, though most scientists agree that addressing multiple environmental stressors simultaneously offers the best hope for bee conservation.

Which piece of evidence from the passage best supports the conclusion that Colony Collapse Disorder has a complex, multi-factorial cause?

The development of jazz music in the early 20th century represented a revolutionary departure from European musical traditions. Unlike classical music, which relied heavily on written notation and formal structure, jazz emphasized improvisation and spontaneous musical conversation between performers. This new approach drew from African musical traditions that prioritized rhythm, call-and-response patterns, and collective creativity. The blues, spirituals, and work songs of African Americans provided the emotional and structural foundation for jazz. Early jazz musicians like Buddy Bolden and Jelly Roll Morton began experimenting with syncopated rhythms and blue notes that challenged conventional harmonic expectations. The migration of musicians from New Orleans to Chicago and New York in the 1910s and 1920s spread these innovations nationwide. By the 1930s, jazz had evolved into big band swing music, demonstrating its capacity for both intimate small-group expression and large-scale orchestral arrangements.

Which evidence from the passage best supports the argument that jazz represented a fundamental break from European musical conventions?

Sleep researchers have long debated whether dreams serve any essential biological function or are simply random brain activity. Recent neuroscientific studies suggest that dreaming plays a crucial role in memory consolidation and emotional processing. During REM sleep, when most vivid dreams occur, the brain appears to transfer information from short-term to long-term memory while simultaneously processing emotional experiences from the day. Patients with REM sleep disorders, who experience significantly reduced dreaming, often show impaired learning abilities and difficulty managing stress. Brain imaging studies reveal that during dreams, the prefrontal cortex—responsible for logical thinking—shows decreased activity, while the limbic system—which processes emotions—becomes highly active. This pattern suggests that dreams allow the brain to work through emotional conflicts without the interference of rational thought. Additionally, studies of students preparing for exams show that those who dream about study material perform better on tests than those who don't report such dreams.

What evidence most directly supports the conclusion that dreaming is essential for cognitive and emotional health?

The invention of the printing press by Johannes Gutenberg around 1440 fundamentally transformed European society. Before the printing press, books were hand-copied by scribes, making them extremely expensive and accessible only to wealthy elites and religious institutions. A single book could take months to copy and cost as much as a farmer's annual income. The printing press reduced both the time and cost of book production dramatically. By 1500, an estimated 15 to 20 million books had been printed across Europe—more books than had been produced in the previous thousand years combined. This explosion in available texts led to increased literacy rates among the middle class and artisans. The printing press also standardized languages, as publishers chose to print in vernacular languages rather than Latin to reach broader audiences. Ideas could now spread rapidly across vast distances, contributing to major social movements like the Protestant Reformation and the Scientific Revolution.

Which evidence best supports the claim that the printing press democratized access to knowledge in European society?

The Industrial Revolution's impact on 19th-century urban development created unprecedented challenges for city planners and public health officials. As factories drew millions of workers to cities, urban populations exploded faster than infrastructure could accommodate them. Manchester, England, grew from 75,000 residents in 1801 to over 300,000 by 1851. Housing shortages forced working families into overcrowded tenements where entire families lived in single rooms without running water or adequate sanitation. These conditions created breeding grounds for diseases like cholera and typhoid. The infamous cholera outbreak of 1854 in London's Soho district killed over 600 people in just ten days. Dr. John Snow's investigation revealed that victims had all used water from a contaminated public pump, establishing the connection between poor sanitation and disease. This discovery led to major public health reforms, including the construction of sewage systems and the provision of clean water supplies. By the 1870s, cities that had implemented these sanitary reforms showed dramatically reduced mortality rates compared to those that hadn't.

Which evidence best supports the argument that rapid industrialization directly caused urban health crises in 19th-century cities?

Psychologists studying decision-making have found that people often rely on mental shortcuts called heuristics rather than carefully analyzing all available information. While these shortcuts usually work well in everyday situations, they can lead to systematic errors in judgment. The availability heuristic causes people to estimate the likelihood of events based on how easily they can remember similar occurrences. For example, people typically overestimate the probability of airplane crashes because media coverage makes such events highly memorable, even though flying is statistically much safer than driving. The confirmation bias leads individuals to seek out information that confirms their existing beliefs while avoiding contradictory evidence. Social media algorithms exploit this tendency by showing users content that aligns with their previous interests and opinions. The anchoring effect occurs when people rely too heavily on the first piece of information they encounter when making decisions. Real estate agents often use this bias by showing potential buyers an overpriced house first, making subsequent properties seem more reasonably priced by comparison.

What evidence most clearly demonstrates that mental shortcuts can lead to flawed decision-making in real-world situations?

The development of antibiotic resistance in bacterial populations represents one of modern medicine's greatest challenges. When antibiotics were first introduced in the 1940s, they seemed like miracle drugs capable of curing previously fatal infections. However, bacteria have evolved resistance mechanisms faster than scientists anticipated. Methicillin-resistant Staphylococcus aureus (MRSA) emerged within just two decades of methicillin's introduction, despite initial confidence that this antibiotic would remain effective indefinitely. The overuse and misuse of antibiotics has accelerated this process significantly. In many countries, antibiotics are available without prescription, leading to unnecessary use for viral infections against which they are ineffective. Additionally, patients often stop taking prescribed antibiotics once they feel better, rather than completing the full course, allowing resistant bacteria to survive and multiply. Agricultural use of antibiotics in livestock further contributes to resistance development. The World Health Organization now classifies antibiotic resistance as one of the top ten global public health threats, predicting that drug-resistant infections could cause 10 million deaths annually by 2050.

Which evidence best supports the conclusion that human behavior, rather than natural evolution alone, has accelerated antibiotic resistance?

Researchers studying the placebo effect have discovered that patients can experience real physiological improvements even when receiving inactive treatments, challenging traditional notions about the mind-body connection. In clinical trials, patients receiving sugar pills often show measurable improvements in conditions ranging from pain to depression. Brain imaging studies reveal that placebo treatments can trigger the release of endorphins and activate the same neural pathways as actual medications. The strength of the placebo effect varies significantly based on several factors. Patients who receive more personal attention from healthcare providers typically show stronger placebo responses than those who receive minimal interaction. The perceived credibility of the treatment also matters—injections generally produce stronger placebo effects than pills, and expensive medications create stronger effects than cheaper ones. Cultural expectations play a role as well; in Germany, where herbal remedies are widely respected, patients show stronger placebo responses to plant-based treatments than patients in countries where such remedies are viewed skeptically. However, the placebo effect has limitations—it cannot shrink tumors or cure infections, though it may help patients cope better with symptoms.

What evidence most strongly supports the conclusion that the placebo effect involves genuine physiological changes rather than just psychological perception?

The discovery of mirror neurons in the 1990s revolutionized neuroscientists' understanding of empathy, learning, and social behavior. These specialized brain cells fire both when an individual performs an action and when they observe someone else performing the same action. Italian researcher Giacomo Rizzolatti first identified mirror neurons in macaque monkeys while studying motor cortex activity. When a monkey reached for food, certain neurons fired, but surprisingly, the same neurons also activated when the monkey watched researchers reach for objects. Subsequent studies found similar neural responses in humans using brain imaging technology. Mirror neurons appear to be crucial for understanding others' intentions and emotions. Children with autism, who often struggle with social interaction and empathy, show reduced mirror neuron activity compared to neurotypical children. Professional musicians demonstrate enhanced mirror neuron responses when observing musical performances, suggesting these systems can be strengthened through experience. Some researchers propose that mirror neurons form the biological basis for cultural learning and language development, as they allow individuals to understand and imitate complex behaviors. However, critics argue that the role of mirror neurons has been overstated and that social cognition involves multiple brain systems working together.

What evidence most effectively supports the claim that mirror neurons play a fundamental role in social understanding and empathy?

The transition from hunter-gatherer societies to agricultural communities represents one of humanity's most significant cultural shifts, with far-reaching consequences for social organization, population growth, and environmental impact. Archaeological evidence suggests that agriculture developed independently in several regions around 10,000 years ago, including the Fertile Crescent, China, and Mesoamerica. The shift to farming allowed human populations to grow dramatically, as agricultural communities could support much larger populations than nomadic groups. Villages in early farming regions show evidence of food storage facilities, permanent housing structures, and specialized tools for cultivation and food processing. However, this transition also created new challenges. Skeletal remains from early agricultural communities reveal increased rates of malnutrition and disease compared to hunter-gatherer populations, likely due to less diverse diets and close contact with domesticated animals. The development of agriculture also led to greater social inequality, as some individuals could accumulate surplus food and resources. Archaeological sites show evidence of elaborate burials for certain individuals alongside simple graves for others, suggesting the emergence of social hierarchies that were less pronounced in hunter-gatherer societies.

Which evidence best supports the argument that the agricultural revolution created significant social stratification that didn't exist in earlier societies?

The phenomenon of seasonal migration in animals represents one of nature's most remarkable adaptations to changing environmental conditions. Arctic terns undertake the longest migration of any animal, traveling roughly 44,000 miles annually from Arctic breeding grounds to Antarctic feeding areas and back. This extraordinary journey allows them to experience two summers each year, maximizing their access to abundant food sources. Migration patterns are not random but follow specific routes that have been refined over thousands of generations. Bar-headed geese migrate over the Himalayas at altitudes exceeding 29,000 feet, where oxygen levels are less than one-third of those at sea level. These geese have evolved enlarged hearts and lungs, along with specialized hemoglobin that binds oxygen more efficiently than that of non-migrating species. Satellite tracking studies reveal that many migrating animals use consistent routes and stopover sites across multiple years, even after being displaced by storms or other disruptions. Young animals often learn migration routes by following experienced adults, indicating that both genetic programming and cultural transmission play roles in navigation. Climate change is now disrupting many traditional migration patterns, as temperature shifts alter the timing of food availability at breeding and feeding grounds.

What evidence most strongly supports the conclusion that animal migration patterns are precisely adapted evolutionary responses rather than random movements?

The development of language in young children follows remarkably consistent patterns across different cultures and languages, suggesting that humans possess an innate capacity for linguistic acquisition. Most children begin producing recognizable words around 12 months of age and experience a 'vocabulary explosion' between 18-24 months, when their word learning accelerates dramatically. During this period, children can acquire new words after just a single exposure, a phenomenon linguists call 'fast mapping.' Children also demonstrate an understanding of grammatical rules before they can explicitly state them. For example, when presented with a nonsense word like 'wug' and shown a picture of an imaginary creature, children as young as three can correctly produce the plural form 'wugs,' even though they've never encountered this word before. This suggests they've internalized rules about English pluralization. Children learning sign language follow similar developmental timelines to those learning spoken language, indicating that the capacity for language acquisition is not dependent on auditory input. Additionally, children who are exposed to multiple languages simultaneously during early development often become fluent in all of them without formal instruction, while adults typically struggle to achieve the same level of proficiency even with intensive study.

Which evidence best supports the argument that humans have an innate biological capacity for language acquisition?

The rise of social media platforms has fundamentally altered how information spreads through society, creating both unprecedented opportunities for rapid communication and serious challenges for information accuracy. Traditional media gatekeepers—editors, fact-checkers, and journalists—once controlled what information reached large audiences. Social media has democratized information sharing, allowing anyone to reach thousands of people instantly. However, studies of information spread on platforms like Twitter reveal that false news stories spread six times faster than true stories and reach more people. The emotional content of information significantly affects its spread rate; posts that trigger strong emotional responses—whether positive or negative—are shared more frequently than neutral, factual content. This creates an incentive structure that favors sensational or emotionally provocative content over accuracy. Echo chambers and algorithmic filtering compound these problems by showing users information that confirms their existing beliefs while filtering out contradictory viewpoints. Research conducted during the 2016 U.S. election found that fake news stories generated more engagement on Facebook than legitimate news stories from major outlets during the final months of the campaign. Despite fact-checking efforts and platform policies aimed at reducing misinformation, false information continues to spread rapidly, particularly during crisis situations when people seek immediate answers.

What evidence most directly supports the claim that social media's design incentivizes the spread of misinformation over accurate information?

The study of extremophiles—organisms that thrive in extreme environmental conditions—has expanded scientists' understanding of life's possibilities and potential locations for extraterrestrial life. These remarkable organisms have been discovered in environments previously thought to be completely inhospitable to life. Thermophiles live in temperatures exceeding 80°C, with some species thriving near deep-sea hydrothermal vents where temperatures can reach 120°C. Psychrophiles flourish in permanently frozen Antarctic valleys where temperatures remain below -15°C year-round. Halophiles survive in salt concentrations five times higher than seawater, such as in the Dead Sea and salt flats. Perhaps most remarkably, some extremophiles called radiotrophes can survive radiation levels thousands of times higher than what would be lethal to humans. Deinococcus radiodurans, known as 'Conan the Bacterium,' can withstand radiation doses 1,000 times greater than what kills most organisms. These discoveries have profound implications for astrobiology. If life can exist in Earth's most extreme environments, similar conditions on other planets or moons might also support life. The discovery of subsurface liquid water on Jupiter's moon Europa and Saturn's moon Enceladus has generated excitement because these environments might be hospitable to extremophile-like organisms.

Which evidence best supports the argument that extremophiles demonstrate life's potential to exist in previously unimaginable conditions?

The decline of pollinator populations worldwide has raised serious concerns about global food security and ecosystem stability. Bees, butterflies, and other pollinators are essential for the reproduction of approximately 75% of flowering plants and 35% of global food crops. Almonds, apples, blueberries, and many other economically important crops depend entirely on insect pollination. However, pollinator populations have declined dramatically in recent decades. Honeybee colonies in the United States decreased from 6 million in 1947 to fewer than 2.5 million today. Monarch butterfly populations have fallen by 85% since the 1980s, with their overwintering grounds in Mexico showing the steepest declines. Multiple factors contribute to this crisis, including habitat destruction, pesticide use, climate change, and disease. Neonicotinoid pesticides, in particular, have been linked to bee disorientation and memory problems that interfere with their ability to navigate back to hives. Studies show that bees exposed to sublethal doses of these chemicals show reduced foraging efficiency and impaired learning abilities. Some regions have already experienced the economic consequences of pollinator decline. In parts of China, fruit trees must be pollinated by hand because wild bee populations have collapsed, significantly increasing labor costs and reducing crop yields.

What evidence most effectively demonstrates that pollinator decline poses a direct threat to human food security?

The phenomenon of neuroplasticity—the brain's ability to reorganize and form new neural connections throughout life—has revolutionized understanding of brain function and recovery from injury. For decades, scientists believed that adult brains were largely fixed in structure, with limited capacity for change after critical developmental periods. However, research beginning in the 1990s demonstrated that adult brains remain remarkably adaptable. London taxi drivers, who must memorize the city's complex street layout, show enlarged hippocampi—brain regions associated with spatial memory—compared to other drivers. The longer they've been driving taxis, the larger this brain region becomes. Similarly, professional musicians demonstrate expanded motor and auditory cortex areas corresponding to their instrument-specific skills. Stroke patients can often recover lost functions through intensive rehabilitation that encourages surviving brain regions to take over damaged areas' responsibilities. Brain imaging studies reveal that when people lose their sight, visual cortex areas become recruited for processing touch and sound, enhancing these remaining senses. Even elderly individuals can develop new neural pathways through learning and practice. A study of seniors who learned to juggle showed measurable increases in gray matter in areas associated with motion processing, proving that neuroplasticity continues throughout the human lifespan.

Which evidence best supports the claim that neuroplasticity allows the adult brain to adapt functionally to changing demands and circumstances?

The role of sleep in memory consolidation has become increasingly clear through neuroscientific research, revealing that different sleep stages serve distinct functions in processing and storing information. During slow-wave sleep, the brain replays neural patterns from the day's experiences, transferring information from temporary hippocampal storage to more permanent cortical areas. This process is particularly important for declarative memories—facts and events that can be consciously recalled. Students who sleep after studying perform significantly better on tests than those who remain awake, even when total time between learning and testing is identical. REM sleep appears crucial for procedural memory consolidation—skills and habits that become automatic with practice. People who practice complex motor tasks show increased REM sleep duration that night, and their performance improvement correlates with the amount of REM sleep they receive. Sleep deprivation studies provide compelling evidence for these functions. Participants kept awake for 24 hours after learning show 40% worse recall than well-rested controls. Brain imaging reveals that sleep-deprived individuals show reduced activity in memory-related brain regions and impaired formation of new neural connections. Even brief naps can facilitate memory consolidation, with studies showing that 90-minute naps containing both slow-wave and REM sleep improve performance on memory tasks.

Which evidence provides the strongest support for the argument that sleep actively facilitates memory consolidation rather than simply preventing interference?

The development of photosynthesis approximately 3.5 billion years ago represents one of the most significant evolutionary innovations in Earth's history, fundamentally altering the planet's atmosphere and enabling the evolution of complex life. Early Earth's atmosphere contained virtually no oxygen, consisting primarily of methane, ammonia, and carbon dioxide. The first photosynthetic organisms were cyanobacteria that developed the ability to harness sunlight to convert carbon dioxide and water into glucose, releasing oxygen as a byproduct. Initially, this oxygen was absorbed by iron in the oceans, creating banded iron formations that geologists use as evidence for early photosynthetic activity. However, as photosynthesis continued for millions of years, oxygen began accumulating in the atmosphere. This Great Oxidation Event, occurring around 2.4 billion years ago, was initially catastrophic for most existing life forms, which were adapted to oxygen-free conditions. Many species went extinct in what scientists call the 'oxygen catastrophe.' However, this atmospheric transformation also created opportunities for new forms of life. Oxygen enabled the development of aerobic respiration, a much more efficient energy production process than anaerobic metabolism. This increased energy availability eventually made possible the evolution of larger, more complex organisms, including the first eukaryotic cells and eventually multicellular life.

What evidence most strongly supports the conclusion that photosynthesis was responsible for Earth's major atmospheric transformation?