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
考研
Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some group
Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some group
admin
2017-02-17
39
问题
Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some groups of mammals have become very large, such as elephants and whales,【C1】______others have always been small, like primates. A new theory developed by an international team, led by Jordan Okie,【C2】______an explanation for why and how【C3】______groups of organisms are able to evolve【C4】______sizes, whereas others are not.
The research team【C5】______information on how quickly an individual animal grows and used it to【C6】______how large it may get【C7】______evolutionary time. Their research was published recently.
The new theory developed from the observation that some animals【C8】______fast and die young, while others take their time and mature much later. "Fast" animals-such as mice—breed very quickly, while humans mature slowly and are relatively older when they first have children. The theory【C9】______that those species that are relatively faster are more likely to evolve a large size quicker than slow species, and that their maximum size will be greater.
The research team tested their theory using the【C10】______records of mammals over the last 70 million years, examining the maximum size of each mammal group【C11】______that time, including whales, elephants, seals and primates. They found that their theory was very well【C12】______.
"Primates have evolved very slowly, and never got bigger than 1,000 pounds," said Okie, "The【C13】______was true of whales, which evolved their large size at the fastest【C14】______recorded."
The theory also makes predictions about the relative risks of extinction for large animals【C15】______small. The maximum size of an animal is limited by the rate of mortality in the【C16】______. Because larger animals【C17】______breed less frequently than smaller animals,【C18】______the mortality rate doubles, the maximum size is predicted to be 16 times smaller.
"This is a really surprising【C19】______," said Okie. "It points to another reason why many of the large animals went【C20】______after the last Ice Age, and their high risk of extinction in modern environments."
【C19】
选项
A、conclusion
B、clue
C、finding
D、sign
答案
C
解析
句首的This指代上文谈到的情况,表示上文所作的预测是一个令人惊奇的发现。C项finding“发现”起到总结上段的作用,又能与下句构成合理的逻辑关系。
转载请注明原文地址:https://kaotiyun.com/show/atEZ777K
0
考研英语一
相关试题推荐
WhatdoRussia’sBelgorodprovinceandsomeschoolsinFloridaandConnecticuthaveincommon?Theyareunlikelyrecruitstothe
WhatdoRussia’sBelgorodprovinceandsomeschoolsinFloridaandConnecticuthaveincommon?Theyareunlikelyrecruitstothe
WhatdoRussia’sBelgorodprovinceandsomeschoolsinFloridaandConnecticuthaveincommon?Theyareunlikelyrecruitstothe
WhatdoRussia’sBelgorodprovinceandsomeschoolsinFloridaandConnecticuthaveincommon?Theyareunlikelyrecruitstothe
WhatdoRussia’sBelgorodprovinceandsomeschoolsinFloridaandConnecticuthaveincommon?Theyareunlikelyrecruitstothe
WhatdoRussia’sBelgorodprovinceandsomeschoolsinFloridaandConnecticuthaveincommon?Theyareunlikelyrecruitstothe
IfAmericanmedicinewereapatient,hewouldweigh350poundsandbegainingfast.Despitebeingrepeatedlycounseledaboutthe
Nearlythree-quarteroftheEarthiscoveredwithwater.The【B1】______ofthecontinents,especiallyinthetemperatezones,isv
随机试题
对于一些原材料制造企业来说,后向一体化进人产品制造领域,有助于实现更大的产品差异性,从而摆脱价格竞争中的不利因素。()
场景(四)某给水厂采用地表水常规处理工艺流程。某项目经理部承建该给水厂的构筑物施工,其中清水池长32m、宽23m、高4.5m,采用现浇钢筋混凝土结构,混凝土强度等级为C30。根据场景(四),作答下列题目:在给水厂的澄清处理工艺中,混凝的作用是(
背景材料: 某高速公路设计车速120km/h,路面面层为三层式沥青混凝土结构。施工为大型公路专业施工企业,设施精良,技术力量雄厚。为保证工程施工质量,施工时作了如下控制: 1.选用合格的石料进行备料,严格对下承层进行清扫,并在开工前进行实验段铺筑。
甲企业2011年接受乙企业以房产投资人股,房产的市场价格为500万元,甲企业还于2011年以自有房产与丁企业交换一处房产,获取差价款200万元,同年政府有关部门批准向该企业出让土地一块,该企业缴纳土地出让金300万元,按当地规定契税税率为5%。2011年甲
甲股份有限公司(下称甲公司)有关资料如下:(1)甲公司为购建一生产设备,于20×7年12月1日专门从银行借入1000万元,借款期限为2年,年利率为5%,利息每年支付,假定利息资本化金额按年计算,每年按360天计算。20×8年1月1日,购入设备一台
2008年,该省城镇单位从业人员数约为()。
科学发展观的实质是______。
简述北洋政府立法活动的特点。(2016年非法学综合课简答第66题)
Forthispart,youareallowed30minutestowriteacompositiononthetopicAdvantagesanddisadvantagesoftheInternet.You
PreventingCrossCulturalMiscommunicationMiscommunicationshappenallthetimebetweenpeoplewhosenativelanguagesarediffe
最新回复
(
0
)