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
2024-05-10
21
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)____________.
[br]
选项
答案
fertile
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3592237.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
Youshouldspendabout20minutesonQuestions1-13whicharebasedonReadingP
Themerefact______mostpeoplebelievenuclearwarwouldbemaddoesnotmeant
[originaltext]W:Hi,thisisJane.We’rebackfromtheholiday.Comeoverandv
混凝土中的氯离子含量,可采用在结构构件上钻取同样深度的混凝土粉末样品通过化学分析
A.氢氯噻嗪 B.普萘洛尔 C.肼屈嗪 D.哌唑嗪 E.卡托普利可引起高
下列关于证券交易所的描述,错误的是()。A.证券交易所属于基金自律组织 B.
百会(Bǎuhuì,DU20)督脉
上消化道出血患者进行纤维胃镜检查的时间一般是A、出血后10~12小时 B、出血
成长小组组员聚会时讨论非常热烈,互不相让,甚至有相互攻击的行为。社会工作者除细心
( )是员工对各种管理问题满意度的晴雨表。A.员工满意度调查 B.员工福利调
最新回复
(
0
)