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单词 archaea
释义
archaea
noun[plural]
biologyspecialized(alsoArchaea)
uk
/ɑːˈkiː.ə/us/ɑːrˈkiː.ə/
atypeofmicroorganism(=extremelysmalllivingthing)similartobacteriabut with a differentstructure,thoughtto haveexistedforbillionsofyears:
古菌
Archaea have anancientlineage,splittingoff frombacteriaprobablyabout 2billionyearsago.古菌溯源久远，与细菌分支大约发生在二十亿年前。
Learning more about Archaea couldanswerquestionsabout theoriginsoflifeonEarth.对古菌有更多的了解可以回答有关地球生命起源的问题。
More examples
  • In the archaea, there is nonucleus.
  • Archaea arepartof theintestinalfloraofhumansandfloatinpocketsofpressurizedwaterin the Earth'scrust.
  • As much as 10percentof the Earth'sbiomasslivesbelowground,includingsingle-celledbacteriacalled archaea thatfeedondecayingmatter.
  • There are some Archaea that are onlyfoundincoalheaps, which makes youwonderwhat they did before westartedminingcoal.
  • The researchersfoundthat twolitresof seawatercontainednearly37,000 differentkindsofbacteriaandnearly3,000typesof archaea,ancientsingle-celledorganisms.
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See more results »
(Definition ofarchaeafrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofarchaea

archaea
Natural communities of novelarchaeaand bacteria growing in cold sulfurous springs with a string-of-pearls like morphology.
From theCambridge English Corpus
We have tested growth and survival of two heterotrophicarchaeaunder relevant in situ conditions.
From theCambridge English Corpus
The latter two clone groups apparently represent widely distributedarchaeain benthic marine sediments and the subsurface.
From theCambridge English Corpus
Despite the unfavourable life conditions, permafrost is colonized by high numbers of viable microorganisms, including methanogenicarchaea.
From theCambridge English Corpus
The cell envelope structures were one of the first biochemical characteristics ofarchaeastudied in detail.
From theCambridge English Corpus
Early radiation of thearchaeaat least may be consistent with geological evidence.
From theCambridge English Corpus
Modernarchaea-planctomycete microbial associations may perhaps provide a model for early sediment communities.
From theCambridge English Corpus
In situ metabolism of methanogenicarchaeaexplains the increase in methane at these depths.
From theCambridge English Corpus
The vacuum conditions and low temperatures of outer space need not prove lethal, as freeze-drying bacteria andarchaeacan actually increase their longevity.
From theCambridge English Corpus
Extremely halophilicarchaeawere isolated from ancient salt sediments and were shown to represent novel species.
From theCambridge English Corpus
The methanogenicarchaea(former archaebacteria) - regarded as strictly anaerobic microbes - are considered as one of the first organisms who settled our planet under extreme conditions.
From theCambridge English Corpus
The missing link betweenarchaeaand eukaryotes is provided by some primitive eukaryotes.
From theCambridge English Corpus
As archaeal translation is related to eukaryotic translation, statements about eukaryotes will be assumed throughout this review to apply toarchaeaas well and vice versa, unless otherwise specified.
From theCambridge English Corpus
Among the discoveries that have resulted, it is found that the kingdom ofarchaeacomprises two subgroups : euryarchaeota, which - remarkably - contain histone-like proteins, and chrenarchaeota, which do not.
From theCambridge English Corpus
In this review, we summarize the available structural and functional data on translation initiation in the context of evolution, drawing parallels between eubacteria,archaea, and eukaryotes.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/archaea##
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更新时间：2024/12/27 19:31:52