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、To show the relationship between fearfulness and environment. B、To give examples of animals that they aren’ t fearful. C、To co
A、To show the relationship between fearfulness and environment. B、To give examples of animals that they aren’ t fearful. C、To co
admin
2019-10-03
36
问题
We’ve been looking at fear from biological perspective. And someone asked whether the tendency to be fearful is genetic. While some study done with mice indicate that mammals do inherit fearfulness to some degree. In one study for instance, a group of mice were placed in the bright lit open boxes with no hiding places. Some of the mice wondered around the box and didn’ t appear to be bothered about being so exposed. But other mice didn’ t move. They stayed up against one wall, which indicate that they were afraid. Well, when fearful mice or you might say anxious mice like ones who stayed in one place. When mice like this were bred with one another repeatedly, after about 12 or so generations, then all of the offspring show similar signs of fearfulness. And even when the new born mouse from this generation was raised by a mother and with other mice who were not fearful, that mice still tend to be fearful as the result. Now, why is this? Well, it’s thought that the specific gene in animal body have influenced on the anxious behavior. These genes that are associated with particular nerve cell receptors in brain. And the degree of overall fearfulness in the mammal seem to depend in the large part on the presence or absence of these nerve cell receptors. And this appears to apply to humans as well by the way. But while the tendency towards anxiety and fear may well be an inherited trait, but the specific form that the fear takes has more to do individual environment. So a particular fear like the fear of snakes or the fear of spider, say, is not genetic. But the overall tendency to have fearful responses is.
Now listen to the following recording and answer questions 16 to 18.
16. How did some of the mice in the study demonstrated that they were afraid?
17. According to the professor, what contribute to a mammal tendency to be fearful?
18. Why does the professor mention snakes and spiders?
选项
A、To show the relationship between fearfulness and environment.
B、To give examples of animals that they aren’ t fearful.
C、To compare fear in mammals to fear in other animals.
D、To identify the nerves that control fear in certain animals.
答案
A
解析
细节题。根据but the specific form that the fear takes has more to do individual environment.So a particular fear like the fear of snakes or the fear of spider可知教授提到专家和蜘蛛是为了说明害怕和环境之间的关系。因此,正确答案为A。
转载请注明原文地址:https://kaotiyun.com/show/x0W7777K
0
大学英语六级
相关试题推荐
LatinoyouthsneedbettereducationforArizonatotakefulladvantageofthepossibilitiesthen-explodingpopulationoffers.Ar
MarieCuriewasthefirstfemaleprofessoratSevres,acollegeforgirlswhowantedtoteachhighereducation.Thesetwenty-yea
MarieCuriewasthefirstfemaleprofessoratSevres,acollegeforgirlswhowantedtoteachhighereducation.Thesetwenty-yea
America’smostpopularnewspaperwebsitetodayannouncedthattheeraoffreeonlinejournalismisdrawingtoaclose.TheNewY
Thelevelofdiscriminationhasvariedenormouslyinthehistoryofhumansocieties,fromgenocidewhereethnicsarekilledoff
Thelevelofdiscriminationhasvariedenormouslyinthehistoryofhumansocieties,fromgenocidewhereethnicsarekilledoff
Oncetheydecidedtohavechildren,MiShelandCarlMeissnertackledthenextbigissue:Shouldtheytrytohaveagirl?Itwas
Oncetheydecidedtohavechildren,MiShelandCarlMeissnertackledthenextbigissue:Shouldtheytrytohaveagirl?Itwas
Islanguage,likefood,abasichumanneedwithoutwhichachildatacriticalperiodoflifecanbestarvedanddamaged?Judgin
随机试题
法律、法规授权的组织在行使授予的行政权力时侵犯公民、法人和其他组织的合法权益造成损害的,()为赔偿义务机关。
A.因Cl-内流而产生B.因Ca2+内流而产生C.因Na+内流而产生D.因K+内流而产生E.因K+外流而产生窦房结细胞动作电位0期去极化
下列除哪项外,均是采录“既往史”所要求的内容
A.滋补肾阴,填精益髓B.健脾化湿,豁痰开窍C.活血祛瘀,健脾养肝D.滋养肝肾,填精补髓E.涤痰开窍,活血通络五迟五软之痰瘀阻滞证的治法为
细胞核染色质呈块状的细胞是()。
以质押方式申请担保流动资金贷款的,质押权利范围包括()等。
外汇呆账是指债务人逾期未履行偿债义务超过三年,确定不能收回的外汇资金。()
国家统计局2010年2月25日发布2009年国民经济和社会发展统计公报,称中国去年全面落实应对国际金融危机的一揽子计划和政策措施,国民经济形势总体回升向好,各项社会事业取得新的进展。初步核算,全年国内生产总值335353亿元,比上年增长8.7%。
A、 B、 C、 D、 C观察每一行,黑色圆圈依次顺时针移动2格,故排除BD;每一行均有一个图形为黑色圆圈与黑色小正方形并列,故C正确。
下列关于关系运算的叙述中,正确的是(60)。
最新回复
(
0
)