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
A、They attack members of their own nests. B、They recruit ants from other species into their nests. C、They form large colonies ma
A、They attack members of their own nests. B、They recruit ants from other species into their nests. C、They form large colonies ma
admin
2018-11-19
59
问题
Today, we are going to continue our discussion of social insects, focusing on the Argentineant, which as you might guess is a species of ant that are natives to Argentina. We’ll consider what happened to this type of ant after some members of the species move to California from their original habitat. Ok, well, in Argentina, these Argentine ants behave like most ant species around the world. They fight other ants of the same species if those ants are from some other nests. But the Argentine ants living in California behave differently. Ants from different nests form a single large colony. Within this colony, there is little aggression among ants from different nests. And when they fight insects from outside their colony, the Argentine ants can quickly recruit a huge army from their network of nests. This of course gives them advantages over other ants’ species. So then, why do Argentine ants behave differently in California than they do in Argentina? Well, using genetic testing, researchers found that all the Argentine ants in California were very similar genetically. You see, when the first Argentine ants came to California, their population must have been very small, and all the later generations of Argentine ants there must be descended from the same few ancestors. So they are all closely related. This discovery is important, because for most social insects, membership in a colony is based on how closely related they are genetically.
Now listen to the following recording and answer questions 22 to 25.
22. What aspect of Argentine ant is mainly discussed?
23. What does the professor say about Argentine ants that live in Argentina?
24. What’s the characteristic of Argentine ants in California?
25. What did genetic testing indicate about the Argentine ants in California?
选项
A、They attack members of their own nests.
B、They recruit ants from other species into their nests.
C、They form large colonies made of several nests.
D、They hide from insects that attack their nests.
答案
C
解析
细节题。根据But the Argentine ants living in California behave differently.Ants from different nests form a single large colony.可知,在加利福尼亚的阿根廷蚂蚁的特点是,它们会形成大群体。因此,正确答案为C。
转载请注明原文地址:https://kaotiyun.com/show/QgH7777K
0
大学英语六级
相关试题推荐
Mathematicalabilityandmusicalabilitymaynotseemonthesurfacetobeconnected,butpeoplewhohaveresearchedthesubject
WhyhascrimeintheU.S.declinedsodramaticallysincethe1990s?Economistsandsociologistshaveofferedabountyofrea
A、Itreceivesmorenutrientsthanitcanabsorb.B、Itbecomesoversaturatedwithwater.C、Itlosestheabilitytosupportinsect
A、Howtheybehavetowardantsfromothernests.B、Whattheyusuallyeat.C、Whytheyarebecomingextinct.D、Whytheywerebrough
Mostofusaretaughttopayattentiontowhatissaid—thewords.Wordsdoprovideuswithsomeinformation,butmeaningsarede
ThehomeserviceindustryinBeijingisexpectedtobecomemoreattractivebothasajobandasanindustry.Sourcesatthe
自古以来,和平就是人类最持久的夙愿。和平像阳光一样温暖、像雨露一样滋润。有了阳光雨露,万物才能茁壮成长。有了和平稳定,人类才能更好地实现自己的梦想。历史告诉我们,和平是需要争取的,和平是需要维护的。只有人人都珍惜和平、维护和平,只有人人都记取战争的惨痛教训
A、Typingnotesoncomputersislesseffective.B、Manycollegestudentspreferwritingnotesbyhand.C、Writingnotesbyhandis
A、Checkingtheaccuracyofscales.B、Calculatingthedensityofmetals.C、Observingchangesintheatmosphere.D、Measuringamoun
A、Itisabreakthroughinthestudyofthenervesystem.B、Itmaystimulatescientiststomakefurtherstudies.C、Itsresulthel
随机试题
采油树上的小四通的作用之一是连接()。
计算机网络按其覆盖的范围分类,可分为局域网和________。
肾上腺外嗜铬细胞瘤主要位于
治疗呃逆胃火上逆证的主方是
傅某因故意伤害致人死亡案,可能被判处死刑。法院在审理过程中,对于下列证人证言.依法府当予以排除的是:
下列哪些选项是围岩工程地质详细分类的基本依据?()[2010年真题]
流动资产与固定资产的区别有()。
某大型港口工程的设计工作经历了工程可行性研究阶段、技术设计阶段、初步设计阶段和施工图设计阶段,先后提高了相关工程的概算、修正概算、总概算、修正总概算、投资估算、工程预算。问题:工程预算的主要作用是什么?
某企业2014年按照国家统一会计政策计算出利润总额300万元,当年直接向某学校捐赠10万元,通过公益性社会团体向贫困地区捐赠30万元,则该企业2014年在计算企业所得税应纳税所得额时可以在税前扣除的捐赠金额为()万元。
某教师在口语交际教学《我们的画》中设计了以下几组活动:活动一:教师在课前把教室布置成刚刚举办过“二年级画展”的样子,学生自由观赏.与环境互动,自然地萌发办自己班级画展的愿望。活动二:让学生以小组为单位,介绍自己的画,请小组里的伙伴对自己
最新回复
(
0
)