首页
登录
职称英语
[originaltext] Recently completed research reveals warmer oceans caused by g
[originaltext] Recently completed research reveals warmer oceans caused by g
游客
2023-09-01
471
管理
问题
Recently completed research reveals warmer oceans caused by global warming is making it more difficult for fish to breathe and survive.
Biologists have known for years declining fish stocks arc connected to global warming, but a new study of eelpouts—big-headed fish that resemble eels—is the first to go deeper and see how warmer seas are connected to how fishes take in oxygen.
Scientists studied the relationship between sea temperature and eelpouts counts in the Southern North Sea, combining data from the field with lab investigations of eelpout physiology.
The researchers not only found the oxygen levels in the waters of the North and Baltic Seas have dropped because of increasing temperatures over the past 50 years--a factor that reduces fish population— they also discovered eelpouts need more oxygen in warmer waters, a second factor that is reducing their numbers.
A key factor in the diminishing size offish stock is increased difficulty in absorbing oxygen via respiration and blood circulation caused by the warming waters.
Animals tolerate a limited range of environmental conditions. Anything out of their tolerance can cause damage. Fish in the North Sea have evolved to tolerate a wider range of temperatures than fish elsewhere because of the large seasonal fluctuations there.
Worldwide, warming waters can be expected to strain species that require lots of oxygen, forcing them to either relocate to cooler waters or face extinction.
选项
A、Fish have difficulty absorbing oxygen in warmer seawater.
B、The seawater temperature is increasing.
C、Fish have trouble finding enough food in warmer seawater.
D、More fish have to find another location.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2977327.html
相关试题推荐
[originaltext]IfyouareinanymajorcityinAmerica,thechancesarehigh
[originaltext]Therearetwobasicwaystoseegrowth:oneasaproduct,the
[originaltext]Therearetwobasicwaystoseegrowth:oneasaproduct,the
[originaltext]W:Hmm,hi.M:Hi.I’mgoingdoortodoortonighttotellpeople
[originaltext]W:Hmm,hi.M:Hi.I’mgoingdoortodoortonighttotellpeople
[originaltext]M:Hello!W:Hello.ThisisLilyWilson.MayIspeaktoTedRobin
[originaltext]M:Igotsomebadnewstoday.Duetotheeconomiccrisis,thecom
[originaltext]M:Igotsomebadnewstoday.Duetotheeconomiccrisis,thecom
[originaltext]M:Igotsomebadnewstoday.Duetotheeconomiccrisis,thecom
[originaltext]M:Igotsomebadnewstoday.Duetotheeconomiccrisis,thecom
随机试题
Thisisabook______sports.A、inB、onC、forB本题考查介词。on表示“关于”。
________(dress)inawhiteuniform,helooksmorelikeacookthanadoctor.Dre
Earthquakesmayrightlyberankedasoneofthemostdevastatingforcesknow
Youcan’tburnthecandle______bothends.A、atB、/C、onD、withoutA习惯表达题。Youcan
Westerndoctorsarebeginningtounderstandwhattraditionalhealershaveal
A.x-y-3=0,x+y-3=0 B.x-y-3=0,x-y+3=0 C.
某市拥有500万人口,其中从业人数450万,登记失业人数15万,该市统计部门公布
《变电验收管理规定》:220kV变电站技改工程厂内验收由地市公司(省检修公司)运
下列关于期限的说法正确的是:()A.公安机关和人民检察院对犯罪嫌疑人的拘留时间
已知某敏感点昼间现状声级为57dB(A),执行2类声环境功能区标准,企业拟新增一
最新回复
(
0
)