染色体种的分化

This is scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? The yeast Candida albicans ekes out a quiet living in our gut. But its a tough life. It faces acids and enzymes, and the immune system always bullies invaders.

发表于:2018-12-24 / 阅读(197) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science, I am Steve Mirsky,Got a minute? A team of Finnish and American geneticists has found that that, for some people at least, music is in their genes. In what the researchers called the first study of its

发表于:2018-12-24 / 阅读(134) / 评论(0) 分类 Scientific American(六)月

Birth Defects Rise in Former Iraqi Battleground Five-year-old Lujane is one of hundreds of children in Fallujah who have been born since 2004 with severe birth defects. Her father says Lujane suffers from multiple afflictions that Iraqi doctors strug

发表于:2019-01-14 / 阅读(179) / 评论(0) 分类 VOA标准英语2012年(十二月)

Butterfly Shows Speciation Sign A study in the journal Science looks at Heliconius butterflies in Ecuador, in which a single gene change that influences mate choice may be the first step in the splitting of the population into two species. Cynthia Gr

发表于:2019-01-30 / 阅读(331) / 评论(0) 分类 60秒科学

CANBERRA, Aug. 17 (Xinhua) -- Australian scientist on Wednesday said his international research team has discovered the trick on how butterfly learn to change its wing pattern to avoid being eaten by birds. The Amazonian butterfly, Heliconius numata,

发表于:2019-02-06 / 阅读(172) / 评论(0) 分类 英语新闻

I want you to imagine two couples 我希望大家设想一下,两对夫妇 in the middle of 1979 在1979年的年中 on the exact same day, at the exact same moment, 在相同的一天,相同的时刻 each conceiving a baby -- okay? 每对怀上了

发表于:2019-02-13 / 阅读(160) / 评论(0) 分类 TED演讲教育篇
学英语单词
alginic fiber
aluminc acid
anaerobiosis
angiofibroblastoma
antimanic drug
aonidiella messengeri
automatic explosion suppression system
barranca, barrancas
Bassini herniorrhaphy
belotti
bidirectional line switch ring
blaze down
brochure
canonization
cawelti
ceride
charcoal-broiled
circulating macrophage
coal pneumatic separation
code relay
collecting terms
commutator core
condensate return system
condition name condition
cost of repair and maintenance
deafferentation
dopa decarboxylase
e.m.u. (electromagnetic unit)
electrical stability
electromagnetic vibrating conveyor
eumc
footstalks
Gaussian lens formula
Guadeloupians
Hadarezer
helsinki principle
hob slide
hyothyroid membrane (or thyro-hyoid membrane)
intermittent drying
L cathode
ladang
Lakes the
lickerous
liquid fuse
list of reinforcement
maeasurement
Manchester United
Marianne Moore
market hypothesis test
mega-sheds
metroperionitis
money instrument
mouht
moving link
Muntz-metal
myomata
nathaniel bacon
neutron scatter plug
nonscanning
north american free trade agreements
object of assessment
operation characteristics
optical density of cloud
oreganoes
paraffin base lubricating oil
pardner
pay channel
pericorneal ring
pivettas
planed lumber
power law spectrum
quinize
ralston-purina
real estate binder
refraction seismic
reinforcing tape
sale of land
scruplesome
seebeck propagation
separate head
shaft-cup spring
side-whiskerss
Simonszand
sound team
soup to nuts
Space-Occupying
steering circuit
sternotracheal
stinkbomb
swallowingcapacity
T number
telegraph sounder
temperature-compensated
temporal plain
Ti-Tre
tight joint
twin-size Cannon ball bed
wandering block sequence
weigley
wheeme
yeasaying
Ymir