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
33
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.
AU of the following adaptations of living things are mentioned in the passage except that in their______.
选项
A、structure
B、ways to develop the survival skills of the young
C、production of the young
D、working system of the body
答案
B
解析
只有B项“提高年幼生物生存技能的方式”文中未涉及,其他选项均在文中提及。
转载请注明原文地址:https://jikaoti.com/ti/xztfFFFM
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
充分必要条件假言推理肯定前件式、否定前件式、肯定后件式和否定后件式的有效性可以通过下面的真值表得到证明:()
依据前提是否涉及某类事物的全体,归纳推理可分为()和()。
(1)“推理可分为直接推理、必然性推理和或然性推理。”该语句作为划分是否正确?请略述理由。(2)“企业就是从事现代化生产的经济活动部门。”该语句作为定义是否正确?请略述理由。
在性质判断中,存在周延性问题的项有()
在生命周期法的各个阶段中产生系统说明书的是()
物质的惟一特性是()
Weallknowthathumansaredamagingtheenvironment,butwhatcanwedoaboutit?Somepeoplearetryingtodotheirbittobemo
Duringthepasttwodecades,researchhas______ourknowledgeofdaydreaming.
ThefirstmoderncomputerwasbuiltatHarvardUniversityin1944.Itwasthefirstmachinethatcouldautomaticallycarryouta
______nofrictionbetweenthesurfaceoftheroadandourfeet,wecouldnotwalkatall.
随机试题
男,40岁,慢性肾炎史9年,近2周来胸闷,呼吸急促。体检:贫血貌,呼吸深而长,心率98次/分,双肺呼吸音粗,血压175/105mmHg,血尿素氮40mmol/L(106mg/dl),血肌酐984μmol/L(11.1mg/dl)。最合适的检查是
A、金樱子B、乌梅C、椿皮D、桑螵蛸E、乌贼骨治胃痛出血宜用
甲公司与乙公司签订了一份购销合同,后乙公司违约。甲公司向法院提起诉讼,法院判决乙公司承担违约责任,乙公司不执行判决,由法院强制执行。关于此案中的法律关系,表述不正确的有:
依照《安全生产法》规定,生产经营单位必须保证上岗的从业人员都经过(),否则,生产经营单位要承担法律责任。
某公司发行普通股正常市价为56元,估计年增长率为12%,第一年预计发放股利2元,筹资费用率为股票市价的10%,则新发行普通股的成本率为( )。
until,die,miss,on,necessarily,chance,happy,try,everything,shoesTherearemomentsinlifewhenyou【K1】______someone
为保证组织结构的完善和组织工作的有效进行,在组织结构中职位的职权和职责要对等,这体现了管理学中()原理。
纸质图书价格近年来一直在上涨。如今一本纸质图书动辄四五十元,比前几年贵出不止一倍,这让许多原本就不经常买书的人望而却步。数字化阅读则不一样,不仅正规出版的电子书远较纸质图书便宜,而且在电脑、手机等平台都可随时阅读,十分方便。电子书易于保存、便于检索,这也是
谈判:沟通
Jameshasjustarrived,butIdidn’tknowhe_______untilyesterday.
最新回复
(
0
)