The passage supplies information for answering which of the following questions?
选择材料题号
阅读冲刺练习
- 170难题
- 阅读冲刺练习
- 填空冲刺练习
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题目来源
题目来源1 : 阅读冲刺练习
题目来源2 : 2021年8月全球GRE机经题
题目来源3 : 2022年3月GRE机经
题目来源4 : 2023年03月GRE机经
正确率：62%
难度：中
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题目内容
题目材料：
Unlike herbivores and omnivores, predators have traditionally been thought not to balance nutrient intake because of the assumption that animal tissue as a food source varies little and is nutritionally balanced. But chemical analysis of invertebrate prey reveals remarkable variation in nutrient composition among species; even within species, nutrient composition may vary considerably. Greenstone suggested that predators may select food items according to their nutrient contents. Jensen et al (2011) have shown experimentally that even sit-and-wait invertebrate predators with limited mobility can work to address nutrient deficiencies. The wolf spider, for instance, has been shown to regulate nutrient intake by extracting more dry mass from a prey item if it contains a higher proportion of a nutrient that was deficient in the previous prey.
The passage supplies information for answering which of the following questions?
- ADo invertebrate predators with full mobility address nutrient needs in the same fashion as sit-and-wait invertebrate predators with limited mobility?
- BWhy would there be a considerable variation in nutrient composition within prey of a given species?
- C Is all of the nutrient content of invertebrate prey contained in the dry mass?
- DWhat would a wolf spider do if a fly it was eating contained a higher proportion of a certain nutrient than was present in the spider`s recent prey?
- EHow is a wolf spider able to determine that some prey it is eating contains a higher proportion of a nutrient that was deficient in the previous prey?
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