|
OG18 OG19 OG20 OG2022
|
Next month, state wildlife officials are scheduled to take over the job of increasing the wolf population in the federally designated recovery area, the number of which will however ultimately be dictated by the number of prey in the area.
|
|
OG18 OG19 OG20 OG2022
|
Although a number of excellent studies narrate the development of domestic technology and its impact on housewifery, these works do not discuss the contributions of the women employed by manufacturers and utility companies as product demonstrators and publicists, who initially promoted new and unfamiliar technology to female customers.
|
|
OG18 OG19 OG20 OG2022
|
Before 1988, insurance companies in California were free to charge whatever rates the market would bear, needing no approval from regulators before raising rates.
|
|
OG18 OG19 OG20 OG2022
|
Unlike the automobile company, whose research was based on crashes involving sport utility vehicles, the research conducted by the insurance company took into account such factors as a driver's age, sex, and previous driving record .
|
|
OG18 OG19 OG20 OG2022
|
Gusty westerly winds will continue to usher in a seasonably cool air mass into the region, as a broad area of high pressure will build and bring fair and dry weather for several days.
|
|
OG18 OG19 OG20 OG2022
|
While most of the earliest known ball courts in Mesoamerica date to 900-400 B.C., waterlogged latex balls found at El Manati and representations of ballplayers painted on ceramics found at San Lorenzo attest to the fact that the Mesoamerican ballgame was well established by the mid-thirteenth century B.C.
|
|
OG18 OG19 OG20 OG2022
|
With employer-paid training, workers have the potential to become more productive not only in their present employment but also in any number of jobs with different employers. To increase the productivity of their workforce, many firms are planning to maintain or even increase their investments in worker training. But some training experts object that if a trained worker is hired away by another firm, the employer that paid for the training has merely subsidized a competitor. They note that such hiring has been on the rise in recent years. Which of the following would, if true, contribute most to defeating the training experts' objection to the firms' strategy?
|
|
OG18 OG19 OG20 OG2022
|
In Mernia commercial fossil hunters often sell important fossils they have found, not to universities or museums, but to individual collectors, who pay much better but generally do not allow researchers access to their collections. To increase the number of fossils available for research, some legislators propose requiring all fossils that are found in Mernia to be sold only to universities or museums.Which of the following, if true, most strongly indicates that the legislators' proposal will fail to achieve its goal?
|
|
OG18 OG19 OG20 OG2022
|
Economist: The price of tap water in our region should be raised drastically. Supplies in local freshwater reservoirs have been declining for years because water is being used faster than it can be replenished. Since the price of tap water has been low, few users have bothered to adopt even easy conservation measures.The two sections in boldface play which of the following roles in the economist's argument?
|
|
OG18 OG19 OG20 OG2022
|
Which of the following most logically completes the passage? According to the last pre-election poll in Whippleton, most voters believe that the three problems government needs to address, in order of importance, air pollution, crime, and unemployment. Yet in the election, candidates from parties perceived as strongly against pollution were defeated, while those elected were all from parties with a history of opposing legislation designed to reduce pollution. These results should not be taken to indicate that the poll was inaccurate, however, since _______ .
|
|
OG18 OG19 OG20 OG2022
|
Manufacturing plants in Arundia have recently been acquired in substantial numbers by investors from abroad. Arundian politicians are proposing legislative action to stop such investment, justifying the proposal by arguing that foreign investors, opportunistically exploiting a recent fall in the value of the Arundian currency, were able to buy Arundian assets at less than their true value.Which of the following, if true, casts the most serious doubt on the adequacy of the Arundian politicians' justification for the proposed legislation?
|
|
OG18 OG19 OG20 OG2022
|
Of the following topics, which would be most likely to be studied within the discipline of chemical ecology as it is described in the passage?
|
|
OG18 OG19 OG20 OG2022
|
[line:11:enable]The author refers to "bacterial infections" (see line 11) most likely in order to
|
|
|
In the Sonoran Desert of northwestern Mexico and southern Arizona, the flowers of several species of columnar cacti- cardon, saguaro, and organ pipe-were once exclusively pollinated at night by nectar-feeding bats, as their close relatives in arid tropical regions of southern Mexico still are. In these tropical regions, diurnal (daytime) visitors to columnar cactus flowers are ineffective pollinators because, by sunrise, the flowers' stigmas become unreceptive or the flowers close. Yet the flowers of the Sonoran Desert cacti have evolved to remain open after sunrise, allowing pollination by such diurnal visitors as bees and birds. Why have these cacti expanded their range of pollinators by remaining open and receptive in daylight?This development at the northernmost range of columnar cacti may be due to a yearly variation in the abundance-and hence the reliability - of migratory nectar-feeding bats. Pollinators can be unreliable for several reasons. They can be dietary generalists whose fidelity to a particular species depends on the availability of alternative food sources. Or, they can be dietary specialists, but their abundance may vary widely from year to year,resulting in variable pollination of their preferred food species. Finally, they may be dietary specialists, but their abundance may be chronically low relative to the availability of flowers.Recent data reveals that during spring in the Sonoran Desert, the nectar-feeding bats are specialists feeding on cardon, saguaro, and organpipe flowers. However, whereas cactus-flower abundance tends to be high during spring, bat population densities tend to be low except near maternity roosts. Moreover, in spring, diurnal cactuspollinating birds are significantly more abundant in this region than are the nocturnal bats. Thus, with bats being unreliable cactus-flower pollinators, and daytime pollinators more abundant and therefore more reliable, selection favors the cactus flowers with traits that increase their range of pollinators. While data suggest that population densities of nectar-feeding bats are also low in tropical areas of southern Mexico, where bats are the exclusive pollinators of many species of columnar cacti, cactus-flower density and bat population density appear to be much more evenly balanced there: compared with the Sonoran Desert's cardon and saguaro, columnar cacti in southern Mexico produce far fewer flowers per night. Accordingly, despite their low population density, bats are able to pollinate nearly 100 percent of the available flowers.
|
|
OG18 OG19 OG20 OG2022
|
The primary purpose of the passage is to
|
|
OG18 OG19 OG20 OG2022
|
According to the passage, which of the following types of nectar-feeding pollinators is likely to be an unreliable pollinator of a particular cactus flower?
|
|
OG18 OG19 OG20 OG2022
|
The second paragraph in the passage serves primarily to
|
|
OG18 OG19 OG20 OG2022
|
It can be inferred that on the basis of the 1981 discovery of conodont remains, paleontologists could draw which of the following conclusions?
|
|
OG18 OG19 OG20 OG2022
|
According to the passage, which of the following is a prediction that is based on the strength of the gravitational attraction of small asteroids?
|
|
OG18 OG19 OG20 OG2022
|
[line:22:enable]The author of the passage mentions "escape velocity" (see line 22) in order to help explain which of the following?
|