Bird-watchers explore a forest to see which of the following six kinds of birds -- grosbeak, harrier, jay, martin, shrike, wren -- it contains. The findings are consistent with the following conditions:
If harriers are in the forest, then grosbeaks are not. If jays, martins, or both are in the forest, then so are harriers If wrens are in the forest, then so are grosbeaks If jays are not in the forest, then shrikes are
If both martins and harriers are in the forest, then which one of the following must be true?
A. Shrikes are the only other birds in the forest.Experimental psychology requires the application of statistics to interpret empirical data and assess their significance. A person will not be able to understand such applications without training in statistics. Therefore, the more training one has in statistics, the better one will be at research in experimental psychology.
Which one of the following arguments exhibits a flawed pattern of reasoning most similar to that exhibited by the argument above?
A. Most people need the love and support of others; without it, they become depressed and unhappy. Therefore, in most instances, the more love and support a person receives, the happier that person will be.By the time Bentham turned his interest to the subject, late in the eighteenth century, most components of modern evidence law had been assembled. Among common-law doctrines regarding evidence there were, however, principles that today are regarded as bizarre; thus, a well-established (but now abandoned) rule forbade the parties to a case from testifying. Well into the nineteenth century, even defendants in criminal cases were denied the right to testify to facts that would prove their innocence.
Although extreme in its irrationality, this proscription was in other respects quite typical of the law of evidence. Much of that law consisted of rules excluding relevant evidence, usually on some rational grounds. Hearsay evidence was generally excluded because absent persons could not be cross-examined. Yet such evidence was mechanically excluded even where out-of-court statements were both relevant and reliable, but the absent persons could not appear in court (for example, because they were dead).
The morass of evidentiary technicalities often made it unlikely that the truth would emerge in a judicial contest, no matter how expensive and protracted. Reform was frustrated both by the vested interests of lawyers and by the profession's reverence for tradition and precedent. Bentham's prescription was revolutionary: virtually all evidence tending to prove or disprove the issue in dispute should be admissible. Narrow exceptions were envisioned: instances in which the trouble or expense of presenting or considering proof outweighed its value, confessions to a Catholic priest, and a few other instances.
One difficulty with Bentham's nonexclusion principle is that some kinds of evidence are inherently unreliable or misleading. Such was the argument underlying the exclusions of interested-party testimony and hearsay evidence. Bentham argued that the character of evidence should be weighed by the jury: the alternative was to prefer ignorance to knowledge. Yet some evidence, although relevant, is actually more likely to produce a false jury verdict than a true one. To use a modern example, evidence of a defendant's past bank robberies is excluded, since the prejudicial character of the evidence substantially outweighs its value in helping the jury decide correctly. Further, in granting exclusions such as sacramental confessions, Bentham conceded that competing social interests or values might override the desire for relevant evidence. But then, why not protect conversations between social workers and their clients, or parents and children?
Despite concerns such as these, the approach underlying modem evidence law began to prevail soon after Bentham's death: relevant evidence should be admitted unless there are clear grounds of policy for excluding it. This clear-grounds proviso allows more exclusions than Bentham would have liked, but the main thrust of the current outlook is Bentham's own nonexclusion principle, demoted from a rule to a presumption.
According to the fourth paragraph of the passage, what specifically does Bentham characterize as preference of ignorance to knowledge?
A. uncritical acceptance of legal conventionsIn the sixteenth century, an age of great marine and terrestrial exploration, Ferdinand Magellan led the first expedition to sail around the world. As a young Portuguese noble, he served the king of Portugal, but he became involved in the quagmire of political intrigue at court and lost the king's favor. After he was dismissed from service to the king of Portugal, he offered to serve the future Emperor Charles V of Spain. A papal decree of 1493 had assigned all land in the New World west of 50 degrees W longitude to Spain and all the land east of that line to Portugal. Magellan offered to prove that the East Indies fell under Spanish authority. On September 20, 1519, Magellan set sail from Spain with five ships. More than a year later, one of these ships was exploring the topography of South America in search of a water route across the continent. This ship sank, but the remaining four ships searched along the southern peninsula of South America. Finally, they found the passage they sought near a latitude of 50 degrees S. Magellan named this passage the Strait of All Saints, but today we know it as the Strait of Magellan. One ship deserted while in this passage and returned to Spain, so fewer sailors were privileged to gaze at that first panorama of the Pacific Ocean. Those who remained crossed the meridian we now call the International Date Line in the early spring of 1521 after ninety-eight days on the Pacific Ocean. During those long days at sea, many of Magellan's men died of starvation and disease. Later Magellan became involved in an insular conflict in the Philippines and was killed in a tribal battle. Only one ship and seventeen sailors under the command of the Basque navigator Elcano survived to complete the westward journey to Spain and thus prove once and for all that the world is round, with no precipice at the edge.
Magellan lost the favor of the king of Portugal when he became involved in a political _____________.
A. entanglementExperts anticipate that global atmospheric concentrations of carbon dioxide (CO2) will have-doubled by the end of the twenty-first century. It is known that CO2 can contribute to global warming by trapping solar energy that is being reradiated as heat from the Earth's surface. However, some research has suggested that elevated CO2 levels could enhance the photosynthetic rates of plants, resulting in a lush world of agricultural abundance, and that this CO2 fertilization effect might eventually decrease the rate of global warming. The increased vegetation in such an environment could be counted on to draw more CO, from the atmosphere. The level of CO2 would thus increase at a lower rate than many experts have predicted.
However, while a number of recent studies confirm that plant growth would be generally enhanced in an atmosphere rich in CO2, they also suggest that increased CO2 would differentially increase the growth rate of different species of plants, which could eventually result in decreased agricultural yields. Certain important crops such as corn and sugarcane that currently have higher photosynthetic efficiencies than other plants may lose that edge in an atmosphere rich in CO2. Patterson and Flint have shown that these important crops may experience yield reductions because of the increased performance of certain weeds. Such differences in growth rates between plant species could also alter ecosystem stability. Studies have shown that within rangeland regions, for example, a weedy grass grows much better with plentiful CO2 than do three other grasses. Because this weedy grass predisposes land to burning, its potential increase may lead to greater numbers of and more severe wildfires in future rangeland communities.
It is clear that the CO2 fertilization effect does not guarantee the lush world of agricultural abundance that once seemed likely, but what about the potential for the increased uptake of CO2 to decrease the rate of global warming? Some studies suggest that the changes accompanying global warming will not improve the ability of terrestrial ecosystems to absorb CO2. Billings' simulation of global warming conditions in wet tundra grasslands showed that the level of CO2 actually increased. Plant growth did increase under these conditions because of warmer temperatures and increased CO2 levels. But as the permafrost melted, more peat {accumulated dead plant material) began to decompose. This process in turn liberated more CO2 to the atmosphere. Billings estimated that if summer temperatures rose four degrees Celsius, the tundra would liberate 50 percent more CO2 than it does currently. In a warmer world, increased plant growth, which could absorb CO2 from the atmosphere, would not compensate for this rapid increase in decomposition rates. This observation is particularly important because high-latitude habitats such as the tundra are expected to experience the greatest temperature increase.
Which one of the following, if true, is LEAST consistent with the hypothesis mentioned in 2nd paragraph of the passage?
A. The roots of a certain tree species grow more rapidly when the amount of CO2 in the atmosphere increases, thus permitting the trees to expand into habitats formerly dominated by grasses with high photosynthetic efficiencies.Opponents of peat harvesting in this country argue that it would alter the ecological balance of our peat-rich wetlands and that, as a direct consequence of this, much of the country's water supply would be threatened with contamination. But this cannot be true, for in Ireland, where peat has been harvested for centuries, the water supply is not contaminated. We can safely proceed with the harvesting of peat.
Which one of the following, if true, most strengthens the argument?
A. Over hundreds of years, the ecological balance of all areas changes slowly but significantly, sometimes to the advantage of certain flora and fauna.The increasing complexity of scientific inquiry has led to a proliferation of multiauthored technical articles. Reports of clinical trials involving patients from several hospitals are usually coauthored by physicians from each participating hospital. Likewise, physics papers reporting results from experiments using subsystems developed at various laboratories generally have authors from each laboratory.
If all of the statements above are true, which one of the following must be true?
A. Clinical trials involving patients from several hospitals are never conducted solely by physicians from just one hospital.As per a report published by the United States Bureau of Economic Analysis, in the last five years, the per capita income of American workers employed in Agriculture and allied services has increased by 10 percent while that of American workers employed in other sectors has increased by 20 percent. Therefore, American workers employed in other sectors now earn a higher per capita income than those employed in Agriculture and allied services.
The argument's reasoning is questionable because the argument fails to rule out the possibility that
A. five years ago, fewer American workers were employed in other sectors than in Agriculture and allied servicesIn 1892 the Sierra Club was formed. In 1908 an area of coastal redwood trees north of San Francisco was established as Muir Woods National Monument. In the Sierra Nevada mountains, a walking trail from Yosemite Valley to Mount Whitney was dedicated in 1938. It is called John Muir Trail. John Muir was born in 1838 in Scotland. His family name means "moor," which is a meadow full of flowers and animals. John loved nature from the time he was small. He also liked to climb rocky cliffs and walls. When John was eleven, his family moved to the United States and settled in Wisconsin. John was good with tools and soon became an inventor. He first invented a model of a sawmill. Later he invented an alarm clock that would cause the sleeping person to be tipped out of bed when the timer sounded. Muir left home at an early age. He took a thousand-mile walk south to the Gulf of Mexico in 1867and 1868. Then he sailed for San Francisco. The city was too noisy and crowded for Muir, so he headed inland for the Sierra Nevadas. When Muir discovered the Yosemite Valley in the Sierra Nevadas, it was as if he had come home. He loved the mountains, the wildlife, and the trees. He climbed the mountains and even climbed trees during thunderstorms in order to get closer to the wind. He put forth the theory in the late 1860's that the Yosemite Valley had been formed through the action of glaciers. People ridiculed him. Not until 1930 was Muir's theory proven correct. Muir began to write articles about the Yosemite Valley to tell readers about its beauty. His writing also warned people that Yosemite was in danger from timber mining and sheep ranching interests. In 1901 Theodore Roosevelt became president of the United States. He was interested in conservation. Muir took the president through Yosemite, and Roosevelt helped get legislation passed to create Yosemite National Park in 1906. Although Muir won many conservation battles, he lost a major one. He fought to save the Hetch Valley, which people wanted to dam in order to provide water for San Francisco. In the late 1913 a bill was signed to dam the valley. Muir died in 1914. Some people say losing the fight to protect the valley killed Muir.
What happened first?
A. The Muir family moved to the United States.A nationwide poll of students, parents, and teachers showed that over 90 percent believe that an appropriate percentage of their school's budget is being spent on student counseling programs. It seems, then, that any significant increase in a school's budget should be spent on something other than student counseling programs.
Which one of the following describes a flaw in the reasoning of the argument above?
A. The argument confuses a mere coincidence with a causal relationship.Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only LSAC exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your LSAT-TEST exam preparations and LSAC certification application, do not hesitate to visit our Vcedump.com to find your solutions here.