首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
To understand better the forces that control human aging and longevity, we have tried to determine whether the longer lifespan o
To understand better the forces that control human aging and longevity, we have tried to determine whether the longer lifespan o
admin
2011-04-26
22
问题
To understand better the forces that control human aging and longevity, we have tried to determine whether the longer lifespan of females might be part of some grand Darwinian scheme. Gender differences in longevity have been【51】in other members of the animal kingdom: in fact, in almost all species that have been observed in the wild, females【52】to live longer than males. Female macaques live an【53】of eight years longer than males, for example, and female sperm whales outlive their male【54】by an average of 30 years.
It seems that a species’ lifespan is roughly correlated【55】the length of time that its young remain【56】on adults. We have come to believe that【57】a significant, long-term investment of energy is required to ensure the survival of offspring, evolution favors longevity—in【58】, female longevity. Indeed, we believe that the necessity for female【59】in the human reproductive cycle has【60】the length of the human lifespan.
We start with the assumption【61】the longer a woman lives and the more slowly she ages, the【62】offspring she can produce and rear to adulthood. Long-lived women【63】have a selective advantage over women who die young. Long-lived men would【64】have an evolutionary advantage over their shorter-lived【65】.But primary studies suggest that men’s (66) capacity is actually limited more by their access【67】females than by lifespan. Hence, the advantage of longevity for men would【68】be nearly as significant as it is for women. And because males historically are not as【69】in child care as females, in the not so distant evolutionary past the survival of a man’s offspring depended not so【70】on how long he lived as on how long the children’s mother lived.
选项
答案
involved
解析
转载请注明原文地址:https://kaotiyun.com/show/nKBO777K
0
考博英语
相关试题推荐
•Readthememorandumandtheannouncementbelow.•Completethenoteontheoppositepage.•Writeawordorphrase(inCAPI
Lookattheorganizationchartbelow.Itshowstheresponsibilityofeachmanager.Whoseresponsibilitydoeseachsentence(11-1
ReadtheinformationbelowaboutmakinginternationalpaymentsthroughtheInternet.Choosethecorrectwordtofilleachgap,f
ConfirmationofFollow-upafterBusinessMeetingThisisfurthertoourmeetingoflastweekatwhichweagreedtoholdase
GreenLandMEMOTo:AllStaffFrom:MarcShawDate:3May2008Subject:NewEmployee①LouisaBeck,formerlyofB.S.Company,②h
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
Thepreservedfoodshouldretainpalatableappearance,flavor,andtexture,aswellasitsoriginalnutritionalvalue.
Whentelevisionfirstbegantoexpand,veryfewofthepeoplewhohadbecomefamousasradiocommentators【31】effectiveontelev
TheChineseworlddivingchampionwas______fromthenationalteam,whichhasbeenfront-pagereportedinthecountryforsever
随机试题
一个组织的结构是否能够迅速改变?请解释理由。它是否应该迅速改变?请予以解释。
Iamconsidering___________myjobasI’mnotgettingonwellwithmyboss.
A.乙酰胆碱B.去甲肾上腺素C.5-羟色胺D.多巴胺E.肾上腺素发生防御反应时,骨骼肌交感舒血管纤维末梢释放
腰麻时,不能作麻醉前给药的是()。
A.尿道前列腺部B.尿道膜部C.尿道球部D.尿道海绵体部E.尿道外口尿道最窄处()
下列属于基本直接费的是()。
下列合同订立的原则中,可以作为合同当事人的行为准则,防止当事人滥用权利,保护当事人合法权益,维护和平衡当事人之间的利益的原则是()。
设立学校及其他教育机构,必须具备的条件是()。
公安机关是武装性质的国家行政机关,实行军事化管理。
So-called"identitytheft"occurswhenapersonpretendstobesomeoneelse(saythatvictimisyou)andafinancialinstitutiono
最新回复
(
0
)