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
2017-08-11
16
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."
【C15】
选项
A、compared to
B、referred to
C、dealt with
D、associated with
答案
A
解析
上下文多次提到大型动物与小型动物有哪些不同,因此所填入的词语应该能体现两者的对比。故选A项compared to“与……相比”。
转载请注明原文地址:https://jikaoti.com/ti/gpr7FFFM
0
考研英语一
相关试题推荐
Formanandwomenunder30,smokingdoesnotpreventtypicalage-relatedweightgain,accordingtoastudyofnearly4,000white
Formanandwomenunder30,smokingdoesnotpreventtypicalage-relatedweightgain,accordingtoastudyofnearly4,000white
Formanandwomenunder30,smokingdoesnotpreventtypicalage-relatedweightgain,accordingtoastudyofnearly4,000white
Somepublicationsthatrankschoolsandcollegessaytheydoittopromoteaccountability;otherssaytheydoittoprovideinfo
Somepublicationsthatrankschoolsandcollegessaytheydoittopromoteaccountability;otherssaytheydoittoprovideinfo
TheUnitedStateseconomyproducedroughly$15trillionworthofgoodsandservicesin2008,makingiteasilythelargestinthe
Recentyearshavebroughtminority—ownedbusinessesintheUnitedStatesnotonlyunprecedentedopportunitiesbutalsonewands
Expectationssurroundingeducationhavespunoutofcontrol.Ontopofaseven-hourschoolday,ourkidsmarchthroughhoursof
Expectationssurroundingeducationhavespunoutofcontrol.Ontopofaseven-hourschoolday,ourkidsmarchthroughhoursof
Optimistsoutlivepessimists,anewstudyshows.Ofnearly100,000women【C1】______intheWomen’sHealthInitiative,thosewhoga
随机试题
患者,女性,63岁,半年前下楼时摔倒致右髋部疼痛,下肢活动受限,不能站立和行走,X线示“右股骨颈骨折”。现患者右髋关节活动受限。该患者术后1周内康复程序不包括下列哪几项
在填写票据的出票日期时,下列各项中,将“10月20日”填写正确的是()。
甲企业为增值税一般纳税人,适用税率为17%,主要生产并销售A产品,A产品的对外含税售价为每件800元,成本为每件500元,原材料核算采用实际成本法。2014年8月,甲企业的有关财务资料如下:(1)销售产品100件给小规模纳税人,开具普通发票。
关于组织理论与组织设计理论.说法正确的是()。
“五岳”是我国的五大名山,下列不属于“五岳”的一项是()
中学中常用的教学方法有________、________、________、________、________和实验法。
阅读下面的文字,完成22—25题。前景诱人的空气发电技术人们将风力视为最洁净的发电技术之一,但是就风力发电而言,也有它的不足:在风力微弱的情况下,风车
某高校要开展一次节能环保宣传活动,宣传对象是距离学校2公里外的某个小学,同时,要邀请另外5个小学的学生代表来参加。假如你是该高校的学生,让你来负责策划组织工作,你怎么做?
在析构函数中调用虚函数时,采用_____联编。
中国航天工程神舟号宇宙飞船以其十次成功发射给全世界留下了印象。1992年,中国载人航天工程正式获得批准。1999年11月20日,中国首只无人操作飞船“神舟一号”成功发射,这标志着中国在太空探索中取得首个巨大突破。在接下来的三年,无人操作飞船的几次试验飞行(
最新回复
(
0
)