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
9
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/3592231.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
AssoonasIgothome,itbegantorain______(heavy).heavily根据题意,空格中应该是由副词来修饰动词r
Allthatwereallyneedtoplotoutthefutureofouruniverseareafewgoo
WhydoreadersofNewScientistcontinuetogetsteamedupaboutrace?After
主张文学要“赤裸裸的抒情写世”,批判明前后七子和桐城派的是()A.胡适的《文学
若f(x)在点x=a处可导,则f′(a)≠()。
小马的父亲不得不对小马这种不通过正当途径解决与妻子小张的婚姻纠纷的方式表示遗憾。
某研究机构从全国随机抽取10个市的儿童家长,对其进行“我国儿童校外生活状况”的问
(2020年真题)关于证券公司债券信息披露的说法,错误的是( )。A.证券公司
设备构支架随()巡视时检查。例行$;$全面$;$特殊$;
我国现行建筑安装工程费用主要由直接费、间接费、利润、利息和税金。( )
最新回复
(
0
)