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Which of the following, if true, provides the strongest additional support for the argument?
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Animals live longer when their calorie intake is restricted to two-thirds of what is considered normal for their species. Animals so restricted are also generally healthier: most disease, including cancer, diabetes, and neurodegenerative illness, are forestalled. This phenomenon was long attributed to a simple slowing of metabolism (cells` production of energy from fuel molecules) and consequent reproduction of its toxic by-products in response to less food. In fact, however, calorie restriction does not slow mammalian metabolism, and in yeast and worms, metabolism is both sped up and altered. Some scientists now theorize that calorie restriction is a biological stressor that, like natural food scarcity, induces a more complex defensive response, which in mammals includes changes in cellular defenses and repair.
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In the passage, the function of the highlighted portion( in yeast and worms, metabolism is both sped up and altered) is to
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The passage implies which of the following about the explanation mentioned in the highlighted text(This phenomenon was long attributed to a simple slowing of metabolism)?
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(i)_____ may sound like the (ii)_____ novelty seeking, but in fact the latter can coexist with and balance that stick-to-it virtue strong-willed Victorians so promoted.
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Slight but _____ variation in the timing of the star's pulses led astronomers to deduce that it was being pulled backwards and forwards by three planets orbiting around it.
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Although one can adduce myriad of examples of ecosystem disruption by nonindigenous species, nevertheless most introduced species that survive in fact appear to have quite _____ effects on the ecosystem they have invaded.
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While acknowledging behaviors the Prime Minster took in order to remain in office were (i)_____, some politicians nevertheless believed this small amount of (ii)_____ was justified to keep reforming government in office.
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It is a paradox of the Victorians that they were both _____ and, through their empire, cosmopolitan.
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Far from _____________ innovations, as the patent system was designed to do, the patenting of concepts such as gene sequences gives individuals and corporations a legal choke to hold over ideas that should be useful to all.
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The author of this political history text shows considerable bias against the political party when assigning credit or blame for its actions: he deems (i)_____ what he favors and avoids what he (ii)_____.
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The (i)_____ quality of much contemporary drawing may be attributable to the use of photography as a drawing shortcut. Photography (ii)_____ modern arts, but when it is used as a tracing tool in order to (iii)_____ the difficulties of achieving correct proportion, the resulting art often feels static and lifeless.
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The experimental theater company's members know that their performances (i)_____ an audience, that they were dense and unpredictable and not always easy to digest. But none of the techniques used would be (ii)_____ anyone with an interest in music or films. Indeed, they would seem strange only to people who expected to see traditionally crafted plays. The actors therefore felt that theater critics' derisive commentary showed only that the critics (iii)_____ the company's work.
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