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
Through a series of experiments, an American scientist has obtained an understanding of the social structure of the most complex
Through a series of experiments, an American scientist has obtained an understanding of the social structure of the most complex
admin
2010-05-26
54
问题
Through a series of experiments, an American scientist has obtained an understanding of the social structure of the most complex of ant societies. The ants examined are the only creatures other than man to have given up hunting and collecting for a completely agricultural way of life. In their underground nests they cultivate gardens on soil made from finely chopped leaves. This is a complex operation requiring considerable division of labor. The workers of this type of ant can be divided into four groups according to size. Each of the groups performs a particular set of jobs.
The making and care of the gardens and the nursing of the young ants are done by the smallest workers. Slightly larger workers are responsible for chopping up leaves to make them suitable for use in the gardens and for cleaning the nest. A third group of still larger ants do the construction work and collect fresh leaves from outside the nest. The largest are the soldier ants, responsible for defending the nest.
To find out how good the various size-groups are at different tasks, the scientist measured the amount of work done by the ants against the amount of energy they used. He examined first the gathering and carrying of leaves. He selected one of the size-groups, and then measured how efficiently these ants could find leaves and run back to the nest. Then he repeated the experiment for each of the other size-groups. In this way he could see whether any group could do the job more efficiently than the group normally undertaking it.
The intermediate-sized ants that normally perform this task proved to be the most efficient for their energy costs, but when the scientist examined the whole set of jobs performed by each group of ants it appeared that some sizes of worker ant were not ideally suited to the particular jobs they performed.
The organization of the ants has the effect of______.
选项
A、getting the most work done
B、dividing the work up systematically
C、each ant helping with all the tasks
D、each ant doing what it can do best
答案
B
解析
推断题。本题问的是:蚂蚁的劳动编制能起到的作用是______。依据科学家得出的结论:蚂蚁按个头大小分配工作的劳动编制有时并不能得到最大的劳动效率,因此这种劳动编制只是有条理地把工作分配到各个蚂蚁。故选B 。
转载请注明原文地址:https://kaotiyun.com/show/bhV7777K
0
大学英语四级
相关试题推荐
CharlesSchulzandthePopularComicStrip"Peanuts"Millionsofpeoplearoundtheworldwholovedthecomicstrip"Peanuts"
Manyfieldsofsciencestandtogainfromtheongoinganalysisofthehumangenome(基因组),butnonemoresothanbiomedicine.The
Forthispart,youareallowed30minutestowriteacompositiononthetopic:LearningChineseFeverintheWorld.Youshouldw
Lastyear’seconomyintheUnitedStatesshouldhavewontheOscar(奥斯卡奖)forbestpicture.Growthingrossdomesticproductwas
Oneofthemostimportantfeaturesthatdistinguishesreadingfromlisteningisthenatureoftheaudience.【C1】______thewrite
A、Inasupermarket.B、Atashop.C、Inagrocery.D、Atarepairshop.B女士说自己一年以前在店里买的MP3播放器。由此就可判断对话发生在商店里。
A、Tomakesurethatthechildlearnsallsubjects.B、Tomakesurethatthechildgetsenoughrestandplaybesideseducation.C、
A、Nineteenmilliondollars.B、Thirty-twomilliondollars.C、Thirty-sevenmilliondollars.D、Forty-twomilliondollars.B
A、30dollars.B、55dollars.C、60dollars.D、50dollars.D
A、Anannouncementtotheprisoners.B、Aspeechatanacademicconference.C、Areporttothegovernment.D、Afreetalkamongfrie
随机试题
阅读下面的文字:声音停了一会儿,然后又问下去。“你知道吗?将来你会不再相信你现在这个信仰,你会认为自己受了骗,白白地浪费你的年轻的生命?”“这我也知道。然而我还是要进来。”“进来吧!”姑娘跨进门槛,一幅厚的门帘放下来掩住了她。“傻瓜!”有人在后
月经淋沥不断,色红,伴头晕耳鸣,烦热,腰膝酸软,脉细数无力,最宜诊断为
A.乳牙滞留 B.牙齿迟萌 C.乳牙早萌 D.乳牙早失 E.融合牙婴儿出生时口腔内有一颗小牙齿属于
原形从肾排泄率最高的喹诺酮类药物是()。
原材料采购跟单实务2.对“button”有什么特殊要求?(2分)
社会工作的主要服务领域包括()。
智育是授予学生系统的科学文化知识、技能,发展他们的智力和与学习有关的非认知因素的教育。()
Whomightbethefirstspeaker(theman)?
Thequestionofwhetherwarisinevitableisonewhichhasconcernedmanyoftheworld’sgreatwriters.Beforeconsideringthis
PASSAGETHREEWhatfeaturedelightstheauthormost?
最新回复
(
0
)