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
Scientists have asked important questions about this explosion for more than a century. Why did it occur so late in the history
Scientists have asked important questions about this explosion for more than a century. Why did it occur so late in the history
admin
2014-09-29
105
问题
Scientists have asked important questions about this explosion for more than a century. Why did it occur so late in the history of Earth? The origin of multicellular forms of life seems a relatively simple step compared to the origin of life itself. Why does the fossil record not document the series of evolutionary changes during the evolution of animals? Why did animal life evolve so quickly? Paleontologists continue to search the fossil record for answers to these questions.
One interpretation regarding the absence of fossils during this important 100-million-year period is that early animals were soft bodied and simply did not fossilize. Fossilization of soft-bodied animals is less likely than fossilization of hard-bodied animals, but it does occur. Conditions that
promote
fossilization of soft-bodied animals include very rapid covering by sediments that create an environment that discourages decomposition. In fact, fossil beds containing soft-bodied animals have been known for many years.
Which of the following best describes the relationship between paragraph 2 and paragraph 3?
选项
A、Paragraph 2 puts forward several scientific claims, one of which is rejected in paragraph 3.
B、Paragraph 2 poses several questions, and paragraph 3 offers a possible answer to one of them.
C、Paragraph 2 presents outdated traditional views, while paragraph 3 presents the current scientific conclusions.
D、Paragraph 2 introduces a generalization that is illustrated by specific examples in paragraph 3.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/CGfO777K
0
托福(TOEFL)
相关试题推荐
ChoosethecorrectlettersA-C.
Melaniesaysshehasnotstartedtheassignmentbecause
Questions14-16Choosethecorrectletter,A,BorC.LongfieldParkFortheactivityonSaturday,visitorsshould
Completethenotesbelow.WriteNOMORETHANTHREEWORDSforeachanswer.Otherrequirementsfortheprojectextractchosen
Choosethecorrectletter,A,BorC.ThetutorrecommendsagainsttakingHumanPhysiologybecauseitwouldnotbethebest
Completethenotesbelow.WriteNOMORETHANTWOWORDSAND/ORANUMBERforeachanswerENVIRONMENTALCHANGEDISCUSSIONInSouthe
Choosethecorrectanswer,A,BorC.ThestudentthoughttherewerenocrocodilesinNorthernAfricabecause
Completethenotesbelow.WriteONEWORDONLYforeachanswer.DevelopmentStudiesDevelopmentStudiesattemptstounderstand-
Whatdoesthepoliticiansaythegovernmentwilldointhefollowingareas?AincreaseexpenditureBmaintainthesamelevelof
InfluenzaandVaccinesThereisnospecificcureforinfluenza.Recommendedtreatmentusuallyconsistsofbedrestandincre
随机试题
PublicperceptionofsuccessintheU.S.mightbetotallymisguided.While92%ofpeoplebelieveotherscaremostaboutfame
衰老红细胞在体内破坏的主要方式是
照片综合评价方法4项要素中,不包括
Windows操作系统是()。
建设单位授予监理单位的权力,应明确反映在( )中,据此项目监理机构才能开展监理活动。
资产负债表“货币资金”项目应根据“库存现金”“银行存款”“其他货币资金”账户余额合计数填列。()
下列环节既征消费税又征增值税的有()。
一日,某老师收到一位学生的来信,信上说:“我这人整天不高兴,觉得自己每天都碌碌无为,而且还会给别人造成麻烦,我的性格比较内向,也不太爱说话,其实我也想像别人一样性格开朗,善于言谈,但我不知道该和同学们说什么,我想说的,我所想的,我觉得与其他同学不一样,所以
(2012年真题)根据马克思主义法学观,原始社会的氏族习惯不属于法律,其主要原因有
Amway(China)DailyNecessitiesCompanyLimitedAmwayisaleadinginternationalcompanyengagedindailynecessities(必需品)wi
最新回复
(
0
)