[网络] 蛭形轮虫;蛭形輪虫

Organisms evolved sexual reproduction so they could stay one step ahead of parasites. Or so the theory goes. But what about beasties that make babies without sex? How do they escape infection? A study in the journal Science suggests that for bdelloid

发表于:2018-12-02 / 阅读(114) / 评论(0) 分类 Scientific American(一)月

Rapid Evolution and Population Dynamics 种群(population)指在一定时间内占据一定空间的同种生物的所有个体。种群中的个体并不是机械地集合在一起,而是彼此可以交配,并通过繁殖将各自的基因传给

发表于:2019-03-09 / 阅读(227) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
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absorption tray
allopregnanediol
alternative activation pathway
anterior conduction block
Apache Junction
area of catchment
arranging aquatic products on
Better be sure than sorry.
blood wings
blusterously
branch-work
Butterley
cam drive
cartilagines nasales sccessoriae
cercis chingii chun.
clap skate
coextrusion blow molding
Community Service Network
comoving reference frame
costigs
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cryptate
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dabbler
depeached
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double-beam densitometer
dreamtime
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electric mantle
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enokitake
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fall in flakes
family-size package
fore deadwood
foreign payable
frequency discriminating circuit
frictional disc drive
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hamano
heteropolar valence
heurn
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kicking over
kreith
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logical model
mabou
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Mishmis
nalgene
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nototheca
NSC-3088
palmer system
parmotrema exquisitum
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priming of tide
quitser
R month
reach back
read someone's fortune
relativistic theory
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rope soaper
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the rope
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tree-guard sprayer
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union of concubinage
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viscose goods
weathering deposit