首页
登录
职称英语
There are about 105 males born for every 100 females, but this (36)______ dr
There are about 105 males born for every 100 females, but this (36)______ dr
游客
2023-09-01
24
管理
问题
There are about 105 males born for every 100 females, but this (36)______ drops to near balance at the age of maturity, and among 70-year olds there are twice as many women as men. But the great universal of male (37)______ is being changed. Now, boy babies (38)______ almost as well as girls do. Fifty years ago, the chance of a baby(particularly a boy baby)surviving depended on its weight. A kilogram too light or too heavy (39)______ almost certain death. Today it makes almost no (40)______. Since much of the variation is due to genes, one more agent of evolution has gone.
There is another way to (41)______ evolutionary suicide: stay alive, but have fewer children. Few people are as (42)______ as in the past. Nowadays the number of births, like the age of death, has become (43)______. Again, (44)____________.
For us, this means that evolution is over; the biological Utopia has arrived. Strangely, it has involved little physical change. No other species fills so many places in nature. (45)____________. We did not evolve, because machines and society did it for us. Darwin had a phrase to describe those ignorant of evolution: they "look at an organic being as a savage looks at a ship, as at something wholly beyond his Comprehension." No doubt we will remember a 20th century way of life beyond comprehension for its ugliness. (46)____________.
选项
答案
ratio
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2975965.html
相关试题推荐
Thereareabout105malesbornforevery100females,butthis(36)______dr
Thereareabout105malesbornforevery100females,butthis(36)______dr
Thereareabout105malesbornforevery100females,butthis(36)______dr
Thereareabout105malesbornforevery100females,butthis(36)______dr
Thereareabout105malesbornforevery100females,butthis(36)______dr
Thereareabout105malesbornforevery100females,butthis(36)______dr
Thereareabout105malesbornforevery100females,butthis(36)______dr
Thereareabout105malesbornforevery100females,butthis(36)______dr
Thereareabout105malesbornforevery100females,butthis(36)______dr
Thereareabout105malesbornforevery100females,butthis(36)______dr
随机试题
【B1】[br]【B4】[originaltext]Thereissomethinghardtoresistaboutcherrie
They’ve______thepricesintheshop,soit’sagoodtimetobuy.A、decreasedB、
Itwasanicehouse,but______toosmallforafamilyoffive.A、rarelyB、fairlyC
Whytalkscannotbetookplace?[br][originaltext]TheUnitedNationstopdipl
ThisisthemostwonderfulfilmI(see)______.haveseen
小柴胡汤的组成是()A.柴胡黄芩半夏枳实干姜人参甘
下列中哪一种情况不属于饮食不洁的范畴A.不清洁食物B.不卫生食物C.腐烂变质食物
根据下列资料回答问题。 保险密度表示的是人均保费,那么河南当年的人口数
下申城首家市民体质监测指导中心对近年来近500名体质检测者体质监测数据对比发现,
关于固废焚烧烟气中二噁英控制措施的说法,正确的有( )A.控制入炉燃料含氯量
最新回复
(
0
)