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
60
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://kaotiyun.com/show/zzQO777K
0
考博英语
相关试题推荐
AtleastsincetheIndustrialRevolution,genderroleshavebeeninastateoftransition.Asaresult,culturalscriptsaboutm
Whentravelerslackanawarenessof【51】timeisregulatedinaforeigncountry,theycanexpecttofeelsomewhatdisoriented.Sin
She’scute,noquestion.Symmetricalfeatures,flawlessskin,lookstobe22yearsold—enteringanymeat-marketbar,awomanluc
Themainideaofthesebusiness—schoolacademicsisappealing.Inawordwherecompaniesmustadapttonewtechnologiesandsour
Theboardofdirectorshavealreadydiscussedthesubject_____inthepreviousmeetingsandtheywillhandleitinallitsaspect
Ascientificlawisliableatanytimetoneedmodifying.Thishappenswhenfactisdiscoveredwhichseemsto______whatthela
AnOhioStateUniversitystudyhaslinkedbehaviorinyoungchildren【C1】______thetypeofjobtheirmotherhas.Motherswithcom
Plasticbagsareusefulforholdingmanykindsoffood,______theircleanness,toughness,andlowcost.
Thedifferencebetweenaliquidandagasisobvious【1】theconditionsoftemperatureandpressurecommonlyfoundatthesurface
Whattheteacherofthescienceclassdoesandsays______ofgreatimportancetothestudentsatcollege.
随机试题
LM曲线向右上倾斜的条件是()。
下列有关我国旅游景点的表述正确的是()。
下列语句与其作者的对应关系正确的有几项?①要恢复民族的地位,便先要恢复民族的精神——孙中山②我自横刀向天笑,去留肝胆两昆仑——谭嗣同③面壁十年图破壁,难酬蹈海亦英雄——周恩来④如烟往事俱忘却,心底无私天地宽——陶铸
A消化性溃疡B胰腺炎C腹主动脉瘤D肠梗阻E阑尾炎刀割样或撕裂痛常见于
A、高流量乙醇湿化给氧B、中流量间歇性给氧C、给予面罩加压纯氧D、低流量持续给氧E、低流量间歇给氧急性肺水肿()
通过测定母畜血浆、乳汁或尿液中孕酮的含量,有助于判断
以下情形中,公司清算组应当自公司清算结束之日起30日内向原公司登记机关申请注销登记的是:()
下列属于证券委托买卖中委托人权利的是()。
过程平均是指()。
WhatmakesReader’sDigestthemostsuccessfulmagazineinpublishinghistory?Beneaththefunandexcitementthatfillourpage
最新回复
(
0
)