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、Their ability to survive is diminished. B、Their body temperature goes down. C、Their ability to digest food improves. D、Their l
A、Their ability to survive is diminished. B、Their body temperature goes down. C、Their ability to digest food improves. D、Their l
admin
2015-07-16
59
问题
Before I tell you about the interesting discovery related to Tyrannosaurus rex, I need to review something we studied last semester—the difference between what are commonly called cold-blooded and warm-blooded animals. In warm-blooded animals, birds and mammals, for example, the body temperature normally stays within a narrow range, no matter what the outside temperature is. As a result, a warm-blooded animal is usually active in both cold and hot weather because its body temperature can adjust to the temperature of its environment.
On the other hand, cold-blooded animals, such as most reptiles, amphibians, and insects, are unable to create enough heat internally to raise their temperature above the temperature of the environment. So, for example, the temperature of a cold-blooded animal falls when the environment is cool.
I hope this distinction is clear. Now, moving on to Tyrannosaurus rex, you may know that dinosaurs, being reptiles, are generally believed to have been cold-blooded. Well, a recent research study found that the chemical composition of the bones of Tyrannosaurus rex was consistent with the bones of an animal that has a very narrow range of internal temperature, indication that it was probably warm-blooded.
6. What is the main topic of the lecture?
7. What is likely to happen to cold-blooded animals when the weather is cold?
8. Why does the speaker discuss Tyrannosaurus rex?
选项
A、Their ability to survive is diminished.
B、Their body temperature goes down.
C、Their ability to digest food improves.
D、Their level of energy and activity increases.
答案
B
解析
由于冷血动物不能在体内创造热能,使体温高于周围的环境,在周围环境变冷时,它的体温也会随之下降。因此选B。根据常识也可以判断出正确答案。
转载请注明原文地址:https://kaotiyun.com/show/kfQ7777K
0
大学英语六级
相关试题推荐
A、Shedreamsofgraduating.B、Theyshouldjointhecelebration.C、Somesleepwillhelpthemalot.D、Theyshouldfocusontheex
It’spossibletoadmireOprahWinfreyandstillwishHarvardhadn’tawardedheranhonorarydoctoroflawdegreeandthecommenc
A、Theyhavethreechildrenalready.B、Cathywishestohaveababy,butTomdoesn’t.C、Theywillstartafamilyassoonastheyg
Adayafterthemobilephonecelebratedits40thbirthday,Facebookhasproducedsomethingthatithopestomakecertainofthe
A、ABachelor’sdegreeandatleasttwoyearsofteachingexperience.B、ADoctor’sdegreeandatleasttwoyearsofteachingexpe
EducationTechnology:Crucial,orJustGadgets?A)Underenormouspressuretoreform,thenation’spublicschoolsarespendingmi
A、Reading.B、Writing.C、Listening.D、Speaking.C女士问男士建立这样一个网站所做的前期准备;男士回答说ELLLO很自然地就出现了,因为在日本他的学生学习英语时缺少听力材料。
A、Shedoesn’tplantomove.B、She’sstilllookingforanapartment.C、Shewastoldthedormwasfull.D、Shewantstomoveouto
A、Edwardisprobablynearby.B、Edwardisaniceperson.C、Edwardisgoingtobuyanewjacket.D、Edwardisplayingfootballrigh
随机试题
下列关于互斥方案比选方法的叙述,正确的是()。
甲公司某年的投资资本回报率为7%,销售增长率为10%;经测算甲公司的加权资本成本为7.5%,可持续增长率为7%。该年甲公司的业务属于财务战略矩阵中的()。
下列各句中,没有语病、句意明确的一句是()。
辩证的否定观不包括()。
一、注意事项1.申论考试,与传统作文考试不同,是对分析驾驭材料的能力、解决问题能力、语言表达能力的测试。2.作答参才时限:阅读材料40分钟,作答110分钟。3.仔细阅读给定的材料,按照后面提出的“申论要求”依次作答。二、给定材料
在我国,公民人格尊严不受侵犯属于宪法权利类别中的()。
假定有以下程序段m=0Fori=5To7Forj=-5To-2m=m+2NextjNexti运行完毕后,m的值是()。
()大提琴()小提琴()手风琴()唢呐
A______exercisesuchasrunningishelpfultoourhealth.
A、Thecouplewereinvolvedinanaccident.B、Themanhadthecarrepaired.C、Theircarhastobereplaced.D、Theircarwasstole
最新回复
(
0
)