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GWD
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According to the passage, the hominid australopithecine most closely resembled a modern human with respect to which of the following characteristics?
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GWD PREP08 Test 2
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Caribou are wary animals with excellent hearing, so stalking them over the treeless landscape, getting close enough to kill it with nothing but a handheld lance, as Dorset people did, required exceptional hunting skill.
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GWD
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The primary purpose of the passage is to
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GWD OG18-文本逻辑 OG19-文本逻辑 OG20-文本逻辑
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Like ants, termites have an elaborate social structure in which a few individuals reproduce and the rest are serving the colony by tending juveniles, gathering food, building the nest, or they battle intruders.
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GWD
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The primary purpose of the passage is to
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GWD PREP08 Test 1
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The three women, liberal activists who strongly support legislation in favor of civil rights and environmental protection, have consistently received labor's unqualifying support.
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GWD
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Citing the recent increase in earnings by several computer companies, economists feel that a cycle has begun in which personal computer users, especially corporate consumers, are replacing their PC's with more powerful models.
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OG15 OG16 OG17 GWD OG18 OG19 OG20 OG2022
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Which of the following, if true, would most clearly support the argument about keystone status advanced in the last sentence of the passage?
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GWD
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Researchers are using computer images to help surgeons plan difficult operations and to develop programs that will work for doctors and nurses in the same way that flight simulators do for pilots, letting medical personnel practice their techniques and test their reflexes before they ever see a patient.
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OG15 OG16 OG17 GWD OG18 OG19 OG20 OG2022
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The passage suggests which of the following about the identification of a species as a keystone species?
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GWD
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The passage is primarily concerned with
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GWD
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By the same techniques used for genetically enhancing plants, making them disease- or pest-resistant, researchers have been able to increase the amount of protein in potatoes, sweet potatoes, and tobacco.
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GWD
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Which of the following can be inferred from the passage regarding the geologic changes that occurred during Ordovician period?
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GWD
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Scientists have recently discovered that the ultrathin, layered construction of a butterfly's wings, the same as the one making some butterflies shimmer via the phenomenon of iridescence, are enabling the insect to control how much heat energy is absorbed by its wings and how much is reflected away.
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GWD
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Which of the following best describes the function of last sentence of the passage?
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GWD
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Researchers have announced that the magnetic fields emitted by one manufacturer's security surveillance system, of which type there are 200,000 worldwide, can interfere with pacemakers and that this interaction can bring on missed or irregular heartbeats, nausea, breathlessness, dizziness, and even fainting.
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GWD
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The primary purpose of the passage is to
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GWD
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Gas hydrates, chemical compounds of water and natural gas, are increasingly being studied for their potential to be huge reservoirs of energy, possibly causing sea floor instability, and significant contributors to global warming.
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GWD
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According to the passage, important inventions of the twentieth century
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GWD PREP08 Test 1
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Researchers agreed that the study of new treatments for heart attack patients was extremely important but more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than the balloon procedure by itself.
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