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
2017-02-24
41
问题
Today, we are going to continue our discussion of social insects, focusing on the Argentinean, 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 bedescended 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 forma 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/ChU7777K
0
大学英语六级
相关试题推荐
Itiscommonlyheldthatdrinkingmoderateamountsofalcoholcanreducetheoddsofhavingadeadlyheartattack.More【B1】_____
Itiscommonlyheldthatdrinkingmoderateamountsofalcoholcanreducetheoddsofhavingadeadlyheartattack.More【B1】_____
Itiscommonlyheldthatdrinkingmoderateamountsofalcoholcanreducetheoddsofhavingadeadlyheartattack.More【B1】_____
A、Theymayattendfewermeetings.B、Theycanhelpchoosetheproductsthatwillbesold.C、Theycanpaylowermembershipfee.D、
JustlikeChinese,Westernersgivegiftsonmanyoccasions,suchas,onbirthdaysoffamilymembers,atweddings,atChristmasa
JustlikeChinese,Westernersgivegiftsonmanyoccasions,suchas,onbirthdaysoffamilymembers,atweddings,atChristmasa
随机试题
汤剂的优点是
慢性细菌性痢疾是指病程超过
A.医务人员在为病人服务过程中,处事慎重、严谨、周密、准确、无误B.医务人员在履行医德义务中所形成的道德意识C.医务人员心理性上自尊心的表现D.促使医务人员自觉履行医学道德义务E.医务人员在物质生活中和精神生活中,由于感受到或理解到职业目标和理想的
消除应力钢丝,是指钢丝在塑性变形下(轴应变)或通过矫直工序后,在适当温度下进行的短时()得到。
背景:A公司中标一城市主干道拓宽改造工程,道路基层结构为150mm石灰土和400mm水泥稳定碎石,面层为150mm沥青混凝土。总工期为7个月。开工前,项目部做好了施工交通准备工作,以减少施工对群众社会经济生活的影响;并根据有关资料,结合工程特点和自身施
在海运过程中,被保险货物被海盗劫持造成的损失属于()
如有两个以上申报价格符合集合竞价确定成交价原则的,深圳证券交易所取()为成交价。
已知某项目前5年的净现金流量如表7一2所示。注:19%的第1—5年的折现系数分别为0.8403、0.7062、0.5934、0.4987、0.4190。根据以上资料,回答下列问题。为了使负债水平不同和筹资成本不同的项目具有共同的比较基础,评估中需
①秋睡熟了一点便是冬,上帝不愿意把它忽然唤醒,所以做了个整人情,连带冬全部给了济南②上帝把夏天的艺术赐给瑞士,把春天的赐给西湖,秋和冬的全赐给了济南。秋和冬是不好分开的③请你在秋天来④可是,加上济南的秋色,济南便由古朴的画境转入静美的诗境中了⑤那城
Aftercompletingtheirmedical-historyforms,patientsattheHopeClinicforWomeninGraniteCity,111.areaskedanunusualq
最新回复
(
0
)