首页
登录
职称英语
According to the new research, the odd shape mounds were formed by______. [origi
According to the new research, the odd shape mounds were formed by______. [origi
游客
2024-12-28
37
管理
问题
According to the new research, the odd shape mounds were formed by______.
Scientists who’ve been studying oddly shaped rock formations in western Australia said it could be fossils from the earliest life on earth, microbes which flourished some 3. 4 billon years ago. The scientists say that the different structures suggest that primitive life can quickly diversify, giving it better chance of developing on other planets. For decades scientists have argued about the meaning of rocky outcrops in western Australia called stromatolites. These odd shape mounds were believed by some to have been formed by chemical or geographical events. Others suggest that they were in fact created by ancient microbes. Now this research indicates that the formations are just too complex to have been formed by chemicals. A team of scientists studied thousands of stromatolites and were able to describe 7 different categories. According to the researchers, this proves that the formations weren’t random, but were in fact formed by microbes about 3. 4 billion years ago.
选项
A、chemical events
B、geographical events
C、microbes
D、stromatolites
答案
C
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3887869.html
相关试题推荐
Accordingtothenewresearch,theoddshapemoundswereformedby______.[br]
ResearcherswhopickedupandanalyzedwildchimpdroppingssaidonThursday
AccordingtoEllen,theincreasingdemandforhiringisdueto[br][originalte
AccordingtoEllen,theincreasingdemandforhiringisdueto[br][originalte
AccordingtoChomsky,aspeaker’sactualutteranceiscalledA、Linguisticunivers
Researchersinvestigatingbrainsizeandmentalabilitysaytheirworkoffer
Researchersinvestigatingbrainsizeandmentalabilitysaytheirworkoffer
Researchersinvestigatingbrainsizeandmentalabilitysaytheirworkoffer
Accordingtothenews,whoclaimedresponsibilityfortherocketattack?[br][
Accordingtothenews,whoclaimedresponsibilityfortherocketattack?[origin
随机试题
TheAmericanRedCrossisoneofthevolunteerorganizations______purposeist
[originaltext]W:Goodmorning.Mr.Power’soffice.M:Goodmorning,I’dliketo
TheAustralianfederationhasa______systemofgovernment.A、two-tierB、three-tie
PartⅡReadingComprehension(SkimmingandScanning)Directions:Inthispart,y
E.coli色氨酸操纵子的两种负调控机制是()。A.阻遏蛋白和cAMP-CAP
按照我国《消费者权益保护法》的规定,消费者可以试用七天无理由退货的商品是()A
小儿肾病综合征大量蛋白尿的定量标准是A、每日>60mg B、每目>70mg
肾上腺髓质分泌( )。A.盐皮质激素 B.糖皮质激素 C.性激素 D.肾
(2016年真题)瑞祥公司是一家啤酒制造和销售企业。2016年年初,公司管理层
变电所的主变压器容量及台数选择。 35~11OkV变电所中变压器的设置错误的
最新回复
(
0
)