首页
登录
职称英语
[originaltext] Today, we are going to continue our discussion of social inse
[originaltext] Today, we are going to continue our discussion of social inse
游客
2024-04-09
41
管理
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://tihaiku.com/zcyy/3546948.html
相关试题推荐
[originaltext]Beforeanewairlinergoesintoservice,everypartofitis
[originaltext]Foryearsscientistshavebeenworriedabouttheeffectsofa
[originaltext]Foryearsscientistshavebeenworriedabouttheeffectsofa
[originaltext]W:Hey,Sam!YoushouldtakealookatthisarticleaboutCanadia
[originaltext]M:MathDepartment,DoctorWebsterspeaking.W:Hello,Prof.Webs
[originaltext]M:MathDepartment,DoctorWebsterspeaking.W:Hello,Prof.Webs
[originaltext]M:MathDepartment,DoctorWebsterspeaking.W:Hello,Prof.Webs
[originaltext]M:MathDepartment,DoctorWebsterspeaking.W:Hello,Prof.Webs
[originaltext]M:Ihaven’theardfromNancysincesheenteredmedicalschool.I
[originaltext]M:Ihaven’theardfromNancysincesheenteredmedicalschool.I
随机试题
NarratorListentopartofalectureinamassmediaclass.Nowgetreadytoans
[originaltext]M:Comeon,Judy,howarewegoingtoconvinceeverybodythatmy
As56millionchildrenreturntothenation’s133,000elementaryandsecond
具有敛肺化痰定喘、止带缩尿功效的药物是()A.桑白皮 B.白果 C.葶
除去饮片中混有的铁屑的方法是A.挑选B.筛选C.风选D.水选E.磁选
含挥发油的药材提取一般采用的方法是A:提挥发油法B:煎煮法C:双提法D:渗
A、5.12 B、8.87 C、1.63 D、9.73
(2018年5月)有关内部招募的特点,主要有( )。A.准确性高 B.费用低
预期学生通过教学活动获得的学习结果称之为()。 A.学习目的 B.教学目的
塔式光热发电集热设备由()等设备组成。A.定日镜 B.汇流箱 C.吸热器钢架
最新回复
(
0
)