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
47
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.
It seems that smaller ants perform more of the______.
选项
A、construction tasks
B、domestic tasks
C、defensive work
D、heavy work
答案
B
解析
细节题。本题问的是:小个蚂蚁似乎更多地从事一些______。依据文章第2段“The making and care of the gardens and the nursing of file young ants are done by file 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" 可知,最小的蚂蚁负责照管园地和看护幼蚁,较大的蚂蚁负责弄碎树叶和清理巢穴,再大些的蚂蚁负责建筑和从外面搬运树叶进巢穴,最大的蚂蚁负责保卫巢穴。由此可见,选项B 为正确答案。
转载请注明原文地址:https://jikaoti.com/ti/5OLFFFFM
0
大学英语四级
相关试题推荐
MostAmericansenjoymovingfromplacetoplaceveryoften.Insomestatesonlyonehouse【C1】______fivehaspeoplelivinginit
Educationistooimportanttotake【B1】______.Whenpeopletakeanythingtooseriously,theyputonblinders,whichcausethemto
A、adviserB、computerprogrammerC、productdesignerD、schoolteacherB
Napoleondeclared,"Victorybelongstothemostpersevering."Uponcarefulstudywefindperseverancedependsuponthreethingsp
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswrong.Theplanewasmovingunsteadilythroughtheair
Somepeoplebelievethatinternationalsportscreatesgoodwillbetweenthenationsandthatifcountriesplaygamestogetherthe
A、Lackofeducation.B、Parentless.C、Sufferingsbecauseofvariousmisfortunes.D、Easyaccesstoagun.D
Bythestandardsofwomen’slib,thepre-warGermanhousewifewasoppressedindeed.Thereneedbenostrugglebetweenthesexes
A、Teacherandstudent.B、Customerandrepairman.C、Patientanddoctor.D、Bossandsecretary.A
A、Sheisateacher.B、Sheisastudent.C、Sheisanofficeclerk.D、Sheisastockbroker.D
随机试题
在零部件自制或外购决策时,如有剩余生产能力,且无其他用途。此时,固定成本属于
牛乳与人乳比较最大的缺点是
女性,23岁,青春期后无月经来潮。无明显体重减轻或过多体育锻炼史,无周期性下腹疼痛史。其姐妹月经初潮年龄均为13岁。查体:女性体态,身高165cm,体重63kg,血压110/60mmHg,颈软无包块。乳房发育好,未见皮肤异常变化。妇科检查:阴毛女性分布,大
下列关于《中华人民共和围文物保护法》,说法错误的是()。
在完成审计业务前,如果将审计业务变更为保证程度较低的鉴证业务,注册会计师认为合理的理由是()。
(2017·山东)学生已有的知识基础会影响当下的学习。()
许多人通过非法拷贝而不是购买为家中的计算机获得软件。但在过去的五年中,因为人们为家用计算机购买软件的平均数量显著增加,所以人们购买且用于家用计算机的平均非法拷贝软件的数量一定比以前少了。以下哪项如果为真.最能支持上述论证?
经过50多年的发展,我国台湾地区资本市场建立起由“证券交易所集中市场一上柜市场一兴柜市场”构成的完善成熟的多层次资本市场体系。近年由于金融海啸、欧债危机等冈素影响,台湾多层次资本市场总体成交值从2010至2012年连续3年下降,2012年较2011年衰退2
有以下程序:#include<stdio.h>main(){inti,j=0;chara口="Howareyou",b[10]={0};for(i=0;a[i];i++)if(a[i]=='')b[j++
删除查询将删除________。
最新回复
(
0
)