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
2023-09-12
12
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://www.tihaiku.com/zcyy/3008478.html
相关试题推荐
[originaltext]DiamondsarethehardestsubstanceknownonEarthandtheyma
[originaltext]Therearemanycomputeruserswhoarewonderingiftheyshoul
[originaltext]M:Hello.W:Hello,Dad?M:YesMary!Howareyou?Isthereanyth
[originaltext]W:Hi,Mike.YourroommatetoldmethatIcouldfindyouinthek
[originaltext]W:Hi,Mike.YourroommatetoldmethatIcouldfindyouinthek
[originaltext]W:Hi,Mike.YourroommatetoldmethatIcouldfindyouinthek
[originaltext]F:IfanybodywantsticketsforFriday’sgame,letmeknow.Myro
[originaltext]F:IfanybodywantsticketsforFriday’sgame,letmeknow.Myro
[originaltext]F:IfanybodywantsticketsforFriday’sgame,letmeknow.Myro
[originaltext]F:IfanybodywantsticketsforFriday’sgame,letmeknow.Myro
随机试题
Noonelikestomakemistakes.Butanewstudysaysorganizationslearnmore
[originaltext]Anelderlywomanyesterdaymadealegalclaimagainstadepar
Whoneedsapublisher?BobYoung,CEOofprint-on-demandserviceLulu.com,s
Itseemsthereislittleevidencethatorganicfoodsaremorenutritioustha
低位肠梗阻的特点是什么?
该省从2010年至2013年GDP增长最快的一年是:() A.2010年
教师学习心理学的意义是什么?
两个牙根发育完全以后发生粘连的牙称为A.融合牙 B.结合牙 C.双生牙 D
某建设项目的折现率与财务净现值的关系如下表所列,则该项目的财务内部收益率为(
根据《关于划定并严守生态保护红线的若干意见》关于生态保护红线含义的说法正确的有(
最新回复
(
0
)