首页
登录
职称英语
[originaltext] Through a series of experiments an American scientist has obt
[originaltext] Through a series of experiments an American scientist has obt
游客
2024-06-08
56
管理
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 ants 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 ants were not ideally suited to the particular jobs they performed.
选项
A、Getting the work done in mixed groups of sizes.
B、Having clear division of labor as a society.
C、Each ant helping with all the tasks.
D、All size groups are ideally suited to their jobs.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3624744.html
相关试题推荐
[originaltext]Cultureshockcanbedescribedasthefeelingofconfusionan
[originaltext]Cultureshockcanbedescribedasthefeelingofconfusionan
[originaltext]Iamoneofthemanycitypeoplewhoarealwayssayingthatg
[originaltext]Oneofthefirstquestionsanybodymayaskaboutanew-borni
[originaltext]Oneofthefirstquestionsanybodymayaskaboutanew-borni
[originaltext]W:Couldyoutellmeabitaboutwhyyouwantedtobeadoctoran
[originaltext]W:Couldyoutellmeabitaboutwhyyouwantedtobeadoctoran
[originaltext]M:Pleasetakeaseat,andwecanhavealittlerestbeforethel
[originaltext]M:Pleasetakeaseat,andwecanhavealittlerestbeforethel
[originaltext]M:Pleasetakeaseat,andwecanhavealittlerestbeforethel
随机试题
Withrapidgrowthofworldpopulation,mainlyindevelopingcountries,the
[originaltext]W:Sitdown,please,Mr.Black.Ihopeyouenjoyedyourjourney.
There’snobetterfeelinginajobthanwhenyouknowthebosshasfullconf
审稿意见一般包括( )等内容。A.稿件内容概述 B.出版成本预算 C.稿件
【教学过程】 环节一:课堂导入 视频导入,创设情境:同学们,目前我国正在进入到城市化进程当中,但是在我国有个别地区,政府在城市化建设的过程中,盲目地进行
机械加压送风系统风机的设置位置在设计无要求时,应根据( )等因素决定。A.安全
宋女士,60岁,身高161CM,体重77KG。平时每日在家里操持家务,较少参加体
孕妇,妊娠38周,头先露,临产10小时,助产娩出一体重2800g活女婴。15分钟
从2002年4月起,我国债券市场准入实行()。 A.备案制B.审批制 C
投资项目评价的不确定性分析是指对影响项目的各种不确定因素进行分析,下列分析方法
最新回复
(
0
)