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
自考
Certain animals and plants develop characteristics(特性)that help them cope with their environment better than others of their kin
Certain animals and plants develop characteristics(特性)that help them cope with their environment better than others of their kin
admin
2011-01-31
87
问题
Certain animals and plants develop characteristics(特性)that help them cope with their environment better than others of their kind. This natural biological process is called adaptation(适应性). Among the superior characteristics developed through adaptation are those that may help in getting food or shelter,in providing protection,and in producing and protecting the young. That results in the evolution of more and more organisms that are better fitted to their environments.
Each living thing is adapted to its way of life in a general way,but each is adapted especially to its own distinct class. A plant,for example,depends upon its roots to fix itself firmly and to absorb water and inorganic chemicals. It depends upon its green leaves for using the sun’s energy to make food from inorganic chemicals. These are general adaptations,common to most plants. In addition,there are special adaptations that only certain kinds of plants have. Many animals have adaptations that help them escape from their enemies. Some insects are hidden by their body color or shape,and many look like a leaf or a little branch. The coats of deer are colored to mix with the surroundings. Many animals have the ability to remain completely still when an enemy is near.
Organisms have a great variety of ways for adapting. They may adapt in their structure,function,and genetics(遗传素质);in their development and production of the young;and in other respects. An organism may create its own environment,as do warm-blooded mammals. which have the ability to adjust body heat exactly to maintain their ideal temperature despite changing weather. Usually adaptations are an advantage,but sometimes an organism is so well adapted to a particular environment that,if conditions Change,it finds it difficult or impossible to readapt to the new conditions.
Which of the following statements about the warm-blooded mammals is true according to the text?
选项
A、They can change their environments.
B、They can adjust body heat to keep their ideal temperature.
C、They can make food from chemicals.
D、They get most of their heat from the environment.
答案
B
解析
见最后一段,第三、四行。
转载请注明原文地址:https://kaotiyun.com/show/UtAR777K
本试题收录于:
英语(二)题库公共课分类
0
英语(二)
公共课
相关试题推荐
二难推理简单破坏式的推理形式是:()
影响输出方式选择的因素一个方面是各种输出设备,以下选项不是输出设备的是()
简述决策表的组成。
下列不属于影响系统实施的技术因素的是()
Americansareaveryenergeticandmobilepeople,alwaysontherun,rushingfromoneappointmenttoanother,fromaPTA(Parent-Tea
Day—schools______(most)workfromMondaytoFridayonly.
Afewyearsagoitwasfashionabletospeakofagenerationgap,adivisionbetweenyoungpeopleandtheirelders.Parentscompla
Thereisn’tanyquestionaboutWashington’sgreatness.Ifhisadministrationhadbeenafailure,therewouldhavebeennoUnited
Thepopularnotionthatolderpeopleneedlesssleepthanyoungeradultsisamyth,scientistssaidyesterday.Whileelderl
《垓下之围》中,表现项羽“身死东城,尚不觉悟,而不自责”的细节描写是()
随机试题
男性,48岁,近1周内发现血压升高156/98mmHg,服用利尿剂氢氯噻嗪降压效果不佳,且出现四肢行走无力,测血钾为2.2mmol/L。若需明确诊断,则下一步需作
评价社区冠心病干预措施效果最有意义的指标是
(一) 材料①:2012年2月,甲公司与其全资子公司乙公司签订了《协议一》,约定甲公司将其建设用地使用权用于抵偿其欠乙公司的2000万元债务,并约定了仲裁条款。但甲公司未依约将
招标采购项目管理方案经过各方面专业人员针对项目的功能、规模、质量、价格、进度等需求目标进行研究和分析,使招标采购项目实施的组织、方法、手段等都更具()
陈文、韩耀、顾飞三人合伙开办了饭香快餐连锁店,陈文负责对外开拓市场业务,韩耀和顾飞负责店内经营。陈文为了提高市场占有率,排挤竞争对手,在未告知韩耀、顾飞的情况下散布谣言,称竞争对手闻就香快餐公司(以下简称“闻就香公司”)在其食品中使用了地沟油。网民吴石将该
对于组成部分财务信息,集团项目组应当确定由其亲自执行或由组成部分注册会计师代为执行的相关工作的类型,下列相关决策中,错误的是()。
在信号和噪音的先定概率均为0.5的情况下,如果对信号的漏报会造成很大的损失,人的判断标准倾向于()。[华南师范大学2017]
Evenachildknowsthatnoddingheadmeans"Yes".ButsomepeopleWouldprobably【C1】______whentheyfirstcametoIndia.Whenth
ThissectionmeasuresyourabilitytospeakinEnglishaboutavarietyoftopics.Therearesixquestionsinthissection.Fore
Whatisthepassagemainlyabout?
最新回复
(
0
)