首页
登录
职称英语
The cypress trees of the Louisiana wetlands are threatened by the exploding popu
The cypress trees of the Louisiana wetlands are threatened by the exploding popu
游客
2025-02-26
23
管理
问题
The cypress trees of the Louisiana wetlands are threatened by the exploding population of nutria, a type of South American rodent introduced into the area in the 1930s in hopes of starting a nutria fur industry. Unfortunately, no one wanted the fur, and now the rodents number in the millions. A park ranger has suggested introducing the South American jaguar, the nutria’s natural predator, into the Louisiana wetlands as a way to control the nutria population. Which of the following, if true, casts the most doubt on the ranger’s plan to introduce jaguars as an effective way to control the nutria population?
选项
A、Past attempts to control the nutria population through traps and poison have resulted in limited and temporary population reductions.
B、A program in Florida found that the best way to conserve the root systems of wetland trees such as cypresses is to surround the trees’ roots with tough plastic barriers.
C、The jaguar is a large and deadly predator that, if introduced, could kill livestock, pets, or even humans that it encounters in the Louisiana wetlands.
D、During the past year an unusually cold winter killed an estimated 35 percent of the nutria population in the Louisiana wetlands.
E、The South American jaguar is a predator of the ferret, which is currently the chief predator of the nutria in the Louisiana wetlands.
答案
E
解析
Answer E suggests that the introduction of the jaguar will reduce one of the existing checks on the nutria population, which could in fact make the problem worse. None of the other answers specifically address the effectiveness of this particular plan.
转载请注明原文地址:http://tihaiku.com/zcyy/3974173.html
相关试题推荐
ThecypresstreesoftheLouisianawetlandsarethreatenedbytheexplodingpopu
TohelppreserveancientEgyptianmonumentsthreatenedbyhighwatertables,aS
5CajunsspeakadialectbroughttosouthernLouisianabythefourthousandAcad
A、thrivingbutthreatenedB、securebutinertC、moribundbutrecoveringD、penurio
Neutronstarsarebelievedtobethehighlycom-pressedremnantsofexplodingst
ErnestGaines’sALessonBeforeDyingis(i)______ofruralLouisiana:thewriti
ThelegislationfacingCongresswasso______thatitthreatenedtoshatterthego
Althoughtheadministrationrepeatedlythreatenedtouseitsauthorityinorder
lnorderto(i)______thelossofnaturalwetlandsusedbymigratingsnowgeese,
Libertyisnoteasy,butfarbettertobean(i)____fox,hungryandthreatened
随机试题
Withmoreandmoregraduatesturnedoutastheresultofincreasingenrollmen
symptoms此处讲的是文化冲击现象的症状:“Homesickness,stress,fearandconfusionareallsymptoms
Whatisthepassagetalkingabout?______.[br][originaltext](16)Hereare
[originaltext]In1984,theWorldChessChampionshipwascalledoffabruptly,du
[originaltext]TheFederalAviationAdministration,orFAA,thegovernmenta
A.2V B.4V C.6V D.8V
对于边远地区和交通不便地区的开户单位,其库存现金限额可多于5天,但不得超过()
安全带禁止挂在()或不牢固的物件上[如隔离开关(刀闸)支持绝缘子CVT、绝
根据《中华人民共和国海洋环境保护法》禁止在沿海陆域内新建不具备有效治理措施的(
投资项目的盈利能力越强,则()越大。 A.动态投资回收期 B.盈
最新回复
(
0
)