首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Previous research by scientists from Keil University in Germany monitored Adelie penguins and noted that the birds’ heart rates
Previous research by scientists from Keil University in Germany monitored Adelie penguins and noted that the birds’ heart rates
admin
2014-01-13
67
问题
Previous research by scientists from Keil University in Germany monitored Adelie penguins and noted that the birds’ heart rates increased dramatically at the sight of a human as far as 30 meters away. But new research using an artificial egg, which is equipped to measure heart rates, disputes this. Scientists from the Scott Polar Research Institute at Cambridge say that a slow moving human who does not approach the nest too closely, is not perceived as a threat by penguins.
The earlier findings have been used to partly explain me 20 per cent drop in populations of certain types of penguins near tourist sites. However, tour operators have continued to insist mat their activities do not adversely affect wildlife in Antarctica, saying they encourage non-disruptive behavior in tourists, and that the decline in penguin numbers is caused by other factors.
Amanda Nimon of the Scott Polar Research Institute spent three southern hemisphere summers at Cuverville Island in Antarctica studying penguin behavior towards humans. " A nesting penguin will react very differently to a person rapidly and closely approaching the nest," says Nimon. "First they exhibit large and prolonged heart rate changes and then they often flee the nest leaving it open for predators(捕食者)to fly in and remove eggs or chicks. " The artificial egg, specially developed for the project, monitored both the parent who had been disturbed when the egg was placed in the nest and the other parent as they both took it in turns to guard the nest.
However, Boris Culik, who monitored the Adelie penguins, believes that Nimon’s findings do not invalidate his own research. He points out that species behave differently — and Nimon’s work was with Gentoo penguins. Nimon and her colleagues believe that Culik’s research was methodologically flawed because the monitoring of penguins’ responses entailed capturing and restraining the birds and fitting them with heart-rate transmitters. Therefore, argues Nimon, it would not be surprising if they became stressed on seeing a human subsequently.
Previous research by German scientists has shown that______.
选项
A、the heart rate of penguins in Antarctica is increasing
B、penguins are disturbed by the presence of a human
C、the number of penguins in Antarctica is declining
D、penguins of different species behave differently
答案
A
解析
细节事实题。根据题干关键词Previous research,German定位到原文首段首句。原文中的thebirds指的就是penguins,heart rates与选项A重现;increased与选项A中的increasing为同根词。故答案为A。
转载请注明原文地址:https://www.kaotiyun.com/show/bzQO777K
0
考博英语
相关试题推荐
AtleastsincetheIndustrialRevolution,genderroleshavebeeninastateoftransition.Asaresult,culturalscriptsaboutm
AnOhioStateUniversitystudyhaslinkedbehaviorinyoungchildren【C1】______thetypeofjobtheirmotherhas.Motherswithcom
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
TheSolarDecathlonisunderway,andteamsofstudentsfrom14collegesanduniversitiesarebuildingsolar-poweredhomesonth
Experimentingwithhouseholdobjectscanoftengetyoungpeopleintrouble,butforoneintelligent,inquisitiveboy,itcreated
Whydoesavegetarianrestaurantmakeitsdishesresemblemeatineverywayexcept______?
Thedifferencebetweenaliquidandagasisobvious【1】theconditionsoftemperatureandpressurecommonlyfoundatthesurface
You’veonlygotaslightcold.You’ll______itinadayortwo.
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsurvivalintheopen.Theyhadneitherthepowerfult
Hehadaquarrelwithhiswifeandjust______her.
随机试题
白芷和细辛功效的共同点
一个8个月的婴儿接种麻疹疫苗后,按照我国的儿童免疫程序,下一次预防接种的月龄是
女,25岁。发现心悸、盗汗、易怒1年,伴有饮食量增加、消瘦。查体:BP110/80mmHg,重度突眼,甲状腺弥漫性肿大,深入胸骨后上纵隔内,心率116次/分。测血T3、T4值高于参考值上限一倍。该患者诊断是
桔梗的功效是
某光缆线路工程采用直埋敷设方式,途中需穿越生态环境脆弱的国家级生态保护区,部分路段沿电气化铁路敷设。施工单位对施工方案进行了策划,编制了详细的施工组织设计,工程顺利开工。施工过程中发生部分路由变更,使得工程停工10天,窝工损失5万元;增挖光缆沟用25天,
“记忆术”很多,比如《二十四节气歌》:春雨惊春清谷天,夏满芒夏暑相连,秋处露秋寒霜降,冬雪雪冬小大寒。这是一种______的记忆术。
案例:阅读下面的学生习作,完成下列问题。快乐与痛苦快乐是痛苦的回味,快乐是痛苦的升华。——题记①快乐人人之所求,痛苦人人之所惧。大家在这两者面前表现出的举动截然不同。但是,现在我想问你——朋友,在面对爱与恨,乐与悲时
统一战线是无产阶级政党策略思想的重要内容,在中国革命建设和改革的各个历史时期,统一战线是中国共产党的一大重要法宝。下列选项中,统一战线与历史时期对应关系错误的是()。
WhatIsDeath?Peopleinthepastdidnotquestionthedifferencebetweenlifeanddeath.Theycouldseethatapersondiedwhen
WhoisJuliegoingtotakeatriptoCanadawith?
最新回复
(
0
)