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
Marine Life If the Census, Bureau thinks it has its hands full counting Americans, imagine what scientists are up against in
Marine Life If the Census, Bureau thinks it has its hands full counting Americans, imagine what scientists are up against in
admin
2014-06-13
67
问题
Marine Life
If the Census, Bureau thinks it has its hands full counting Americans, imagine what scientists are up against in trying to tally every living thing in the ocean, including microbes so small they seem invisible.
The worldwide Census of Marine Life has four field projects focusing on hard-to-see sea life such as tiny microbes and zooplankton in the sea bed. Tiny as individuals, these life forms are massive as groups and provide food that helps underpin better-known living things.
"Scientists are discovering and describing an astonishing new world of marine microbial diversity and abundance, distribution patterns and seasonal changes," said Mitch Sogin of the Marine Biological Laboratory in Woods Hole, Mass. , leader of the International Census of Marine Life. The Census of Marine Life, which is scheduled to be reported Oct. 4 in London, has involved more than 2,000 scientists from more than 80 nations. The decade-long census has discovered more than 5,000 new forms of marine life. Researchers think there may be several times that many yet to be found.
Previous updates have focused on larger creatures, such as an Antarctic expressway where octopuses ride along in a flow of extra salty water, the deepest comb jellyfish ever found and The White Shark Cafe, a deep Pacific Ocean site where sharks congregate in winter.
Now the researchers have turned to the tiniest of things, some of which burrow in the sea floor. Remotely operated deep-sea vehicles discovered that roundworms dominate the deepest, darkest abyss. Sometimes, more than 500,000 can exist in just over a square yard of soft clay. Only a few different types have been studied. There are also 16, 000 or more species of seaworms. There are loriciferans, which the scientists call "girdle wearers" because of hind shells resembling a corset. And there are hundreds of types of tiny crustaceans.
"Such findings make us look at the deep sea from a new perspective," says researcher Pedro Martinez Arbizu of the German Center for Marine Biodiversity Research. "Far from being a lifeless desert, the deep sea rivals such highly diverse ecosystems as tropical rainforests and coral reefs."
What is said about smaller marine life?
选项
A、It is impossible to count its number owing to its invisibility.
B、It is found that all smaller marine life live in the sea bed.
C、Some smaller marine life are tiny while others are massive.
D、Some familiar creatures depend on smaller marine life for food supply.
答案
D
解析
根据题干关键词smaller marine life定位到文章第2段第2句:Tiny as individuals,theselife forms are massive as groups and provide food that helps underpin better—known livingthings.可知,较小形体的海洋生物为我们所熟知的生物提供了食物。
转载请注明原文地址:https://kaotiyun.com/show/DmK4777K
0
考研英语一
相关试题推荐
Writeanessayof160~200wordsbasedonthefollowingdrawing.Inyouressay,youshould:1)describethedrawingbriefly;2)e
Perhapsnothingwillbeassurprisingabout21st-centuryAmericaasitssettledness.FormorethanagenerationAmericanshaveb
Manyindustrieshavegoodreasonforcautionatthemoment,giventhefearsofa"doubledip"intheworldeconomy.Butthemood
HuBing,oneofyourfriends,failedinthelastIELTSandisupset.Writealettertohimto1)expressyourpity,pointoutth
Everyyear100millionholiday-makersaredrawntotheMediterranean.Withonethirdoftheworld’stouristtrade,itisthemos
Personalizedmedicinehasprovedanelusivedream.Biotechnologycompanieshaveclaimedthatbymatchingaperson’sgeneticmake
Ahospitalisaninstitutionthatprovidesmedicalservicesforacommunity.Thedoctors,nurses,andotherpersonnelofahospi
Thefollowingparagraphsaregiveninawrongorder.ForQuestions41-45,youarerequiredtoreorganizetheseparagraphsintoa
AircraftRapidDecompressionProblemsWithoutquestion,therapiddecompressionoftheQantasBoeing747thatlandedinMani
HostessBrandsisnotdeadjustyet,buttheprospectsforthecompany’ssurvivalarenowdimatbest.Hostess—whichstillmakes
随机试题
Ⅱ型变态反应又称
颅底颌顶位不能显示的结构是
计算室内消火栓给水系统管道局部阻力损失时,下列说法正确的是________。
采用双倍余额递减法计算年折旧额时。若固定资产净值为1000万元,折旧年限20年,则年折旧额为()。
会计法律制度与会计职业道德的性质不同,会计法律制度具有自律性、会计职业道德具他律性。()
以下关于证券市场线的叙述,正确的是()。
现行增值税法规定,下列行为应纳增值税的有()。
=_______。
请在【答题】菜单下选择【进入考生文件夹】命令,并按照题目要求完成下面的操作。注意:以下的文件必须保存在考生文件夹下。文慧是新东方学校的人力资源培训讲师,负责对新入职的教师进行入职培训,其PowerPoint演示文稿的制作水平广受好评。最近,她应北京节水
A、Stayathome.B、Holdparties.C、Dopart-timejobs.D、Travel.C细节题。男士说工作不好找,而自己又不能闲坐着,要挣钱,所以暗指他暑假要做兼职。
最新回复
(
0
)