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
47
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.
According to the passage, which factor is the most important influence for penguins’s heart rates?
选项
A、Climate change.
B、Tourist activities.
C、Scientific research.
D、Not firmly known yet.
答案
D
解析
细节推理题。文章对企鹅是否会因为游客而受到影响这个问题进行了讨论。通读全文可知文章并没有得出什么具体的影响因素的结论。故答案为D。
转载请注明原文地址:https://jikaoti.com/ti/ee6YFFFM
0
考博英语
相关试题推荐
LastyearFrenchdriverskilled【56】than5,000peopleontheroadsforthefirsttimeindecades.Creditgoeslargely【57】the1
TheGreek’sloftyattitudetowardscientificresearch——andthescientists’contemptofutilitywasalongtimedying.Foramill
Thedoctor’s______wasthatsheshouldgoandseethespecialistinthisfield.
TheterroristattacksinLondonThursdayservedasajarringreminderthatintoday’sworld,youneverknowwhatyoumightseew
Inrecentyearsmanycountriesoftheworldhavebeenfacedwiththeproblemofhowtomaketheirworkersmoreproductive.Some
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
Itisagenerallawinpolitics,thatthepowermosttobedistrusted,isthatwhich,possessingthegreatestforce,istheleas
ThreeEnglishdictionariespublishedrecentlyalllayclaimtopossessinga"new"feature.TheBBCEnglishDictionary,contains
Twomodesofargumentationhavebeenusedonbehalfofwomen’semancipationinWesternsocieties.Argumentsinwhatcouldbecal
"Twohundredeightmillion,twohundredninemillion,twohundredtenmillion..."Thatisthesoundofsolidwastehittingthe
随机试题
撤消与恢复命令主要是对图像处理过程中出现的______进行_____的命令。
公共关系中的_______是指文化、教育、艺术、福利、慈善、宗教、社团等组织,运用传播的力量去发展会员、筹措经费、争取资源等。
A.血尿B.肾功能减退C.二者均是D.二者均非
如果解决施工合同纠纷的仲裁过程违反法定程序,当事人可以向( )申请撤销裁决。
监理工作总结应包括()内容。
施工质量保证体系的运行,应以质量()为主线,以过程管理为重心。
小麦麦穗基部离地的高度受四对基因控制,这四对基因分别位于四对同源染色体上。每个基因对高度的增加效应相同且具叠加性。将麦穗离地27cm的mmnnuuvv和离地99cm的MMNNUUVV杂交得到F1,再用F1代与甲植株杂交,产生F2代的麦穗离地高度范围是36~
学校心理辅导以正常学生为主要对象,以发展辅导为主要内容。()
设a=4,b=5,c=6,执行语句Printa
Throughtheverysymbolismofpopularculturethatmolded,definedandcontainedwomenintheirroleasthesubservienth
最新回复
(
0
)