首页
登录
职称英语
Plantings of cotton bioengineered to produce its own insecticide against bollwor
Plantings of cotton bioengineered to produce its own insecticide against bollwor
游客
2025-02-25
24
管理
问题
Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year. This year the plantings are being seriously damaged by bollworms. Bollworms, however, are not necessarily developing resistance to the cotton’s insecticide. Bollworms breed on corn, and last year more corn than usual was planted throughout cotton-growing regions. So it is likely that the cotton is simply being overwhelmed by corn-bred bollworms.
In evaluating the argument, which of the following would it be most useful to establish?
选项
A、Whether corn could be bioengineered to produce the insecticide
B、Whether plantings of cotton that does not produce the insecticide are suffering unusually extensive damage from bollworms this year
C、Whether other crops that have been bioengineered to produce their own insecticide successfully resist the pests against which the insecticide was to protect them
D、Whether plantings of bioengineered cotton are frequently damaged by insect pests other than bollworms
E、Whether there are insecticides that can be used against bollworms that have developed resistance to the insecticide produced by the bioengineered cotton
答案
B
解析
Argument Evaluation
Situation Although plantings of cotton bioengineered to produce an insecticide to combat bollworms were little damaged by the pests in previous years, they are being severely damaged this year. Since the bollworms breed on corn, and there has been more corn planted this year in cotton-growing areas, the cotton is probably being overwhelmed by the corn-bred bollworms.
Reasoning In evaluating the argument, which question would it be most useful to have answered? The argument states that the bioengineered cotton crop failures this year (1) have likely been due to the increased corn plantings and (2) not due to the pests having developed a resistance to the insecticide. This also implies (3) that the failures are not due to some third factor.
It would be useful to know how the bioengineered cotton is faring in comparison to the rest of this year’s cotton crop. If the bioengineered cotton is faring better against the bollworms, that fact would support the argument because it would suggest that the insecticide is still combating bollworms If, on the other hand, the bioengineered cotton is being more severely ravaged by bollworms than is other cotton, that suggests that there is some third cause that is primarily at fault.
A This would probably be useful information to those trying to alleviate the bollworm problem in
bioengineered cotton. But whether such corn could be developed has no bearing on what is causing the bioengineered cotton to be damaged by bollworms this year.
B Correct. If bollworm damage on non-bioengineered cotton is worse than usual this year, then bollworm infestation in general is simply worse than usual, so pesticide resistance does not need to be invoked to explain the bollworm attacks on the bioengineered cotton.
C Even if other crops that have been bioengineered to resist pests have not successfully resisted them, that fact would not mean that the same is true of this cotton. Furthermore, the facts already suggest that the bioengineered cotton has resisted bollworms.
D Whether other types of pests often damage bioengineered cotton has no bearing on why bollworms are damaging this type of cotton more this year than in the past.
E This, too, might be useful information to those trying to alleviate the bollworm problem in bioengineered cotton, but it is not particularly useful in evaluating the argument. Even if there are pesticides that could be used against bollworms that have developed resistance to the insecticide of the bioengineered cotton, that does not mean that such pesticides are being used this year.
The correct answer is B.
转载请注明原文地址:https://www.tihaiku.com/zcyy/3971865.html
相关试题推荐
Highlevelsoffertilizerandpesticides,neededwhenfarmerstrytoproducehig
Ythexhasdevelopedasmalldieselenginethatproduces30percentlessparticul
MachineA,workingaloneatitsconstantrate,producesxpoundsofpeanutbutte
Workingaloneatitsconstantrate,machineAproducesklitersofachemicalin
Aconstructioncompanywillproduceidenticalmetalsupportsintheshapeofar
Toproduceaparticularradiomodel,itcostsamanufacturer$30perradio,and
Severalsurgeonscautionedagainst______thenewprocedure,______thatpatients
A、Theirsisasterile,abstractpractice,unlikelytoproducefewlastingworks.
A、EasieraccesstohealthcareforthevictimB、Socialdiscriminationagainstth
STRATIFY:A、homogenizeB、matureC、condenseD、reproduceE、exaltA
随机试题
Wecanuseoureyesandfacialexpressionstocommunicatevirtuallyevery______
Youshouldremembertoavoid________inwhiteonthatoccasionbecauseotherswil
[originaltext](5)Solarpanelsareanincreasinglycommonsightonthetops
患者男,19岁。高空坠落伤1小时。查体:P110次/分,BP70/50mmHg。
婚前医学检查结束后,根据检查结果需给出相应的医学意见,以下不属于医学意见范畴的是
下列关于无风险利率的说法中,正确的有()。 Ⅰ.无风险利率是指将资金投资于某一
脉压增大可见于A.心包积液患者 B.缩窄性心包炎患者 C.主动脉瓣关闭不全患
关于变电站(生产厂房)外墙、竖井等处固定的爬梯,以下说法正确的是()。爬梯应牢固
Itisofhighimportancethatyou___at
某建设单位承接了一项大型冶炼工程建设项目,该项目工程量近6亿元人民币,工程内容
最新回复
(
0
)