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
Adaptation of Living Things Certain animals and plants develop characteristics that help them cope with their environment be
Adaptation of Living Things Certain animals and plants develop characteristics that help them cope with their environment be
admin
2014-05-13
83
问题
Adaptation of Living Things
Certain animals and plants develop characteristics that help them cope with their environment better than others of their kind. This natural biological process is called adaptation. 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(微生物)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(无机的)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 of adapting. They may adapt in their structure, function, and genetics; in their development and production of the young; and in other respects. An organism may create its own environment, as do warm-blooded mammals(哺乳动物), 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.
The author cites the behavior of warm-blooded mammals in order to illustrate that
选项
A、a living thing may have the ability to create an environment of its own
B、a living creature may have the ability to remain still when an enemy is near
C、a living creature may have the ability to make food from its inorganic chemicals
D、a living creature may have the ability to change the color of its skin
答案
A
解析
根据第四段第三句“An organism may create its own environment…”可知,作者列举温血生物的例子是为了说明生物可以营造它自己的环境,所以选择A项。
转载请注明原文地址:https://kaotiyun.com/show/PdQd777K
本试题收录于:
职称英语理工类B级题库职称英语分类
0
职称英语理工类B级
职称英语
相关试题推荐
Parkinson’sDisease1.Parkinson’sdiseaseaffectsthewayyoumove.Ithappenswhenthereisaproblemwithcertainnervec
TeachingandLearningMedicineAwardTwoscientistswhohavewonpraiseforresearchintothegrowthofcancercellscouldb
WarmPeopleLikelytoKeepColdatBayStayingpositivethroughthecoldseasoncouldbeyourbestdefenseagainstgettingi
MigrantWorkersInthepasttwentyyears,therehasbeenanincreasingtendencyforworkerstomovefromonecountrytoanot
LungCancerThedeathrateduetocancerofthelungshasincreasedmorethan800percentinmalesandhasmorethandoubled
TheyareconcernedforthefateoftheforestandtheIndianswhodwellinit.
Sleepproblemscanseriouslyaffectone’squalityoflife."Sleepfragmentation"referstoamarkedlackof"REM"sleep.
Sleepproblemscanseriouslyaffectone’squalityoflife.ThenumberofolderAmericanswithsleepproblemsisnotsmall.
LookingtotheFutureWhenamagazineforhigh-schoolstudentsaskeditsreaderswhatlifewouldbelikeintwentyyears,the
5.Techniquestoharnesstheenergyofthesunarebeingdeveloped.
随机试题
什么叫拉铆?
在组织内部的人际关系中,决定一个行政组织团结或分裂的关键是()
格林-巴利综合征的病人,出现呼吸肌重度麻痹时应( )。
A.突发胸部撕裂样疼痛,伴全身冷汗,但血压常升高B.胸部和背部持续烧灼样疼痛C.活动后胸骨后或左胸部剧烈疼痛,休息后缓解D.常有心前区针刺样疼痛E.胸骨后剧烈压榨样疼痛,舌下含服硝酸甘油不能缓解急性心肌梗死
对于盘盈盘亏的财产物资,需在期末结账前处理完毕,如在期末结账前尚未经批准处理的,等批准后进行处理。()
企业计提短期借款的利息时,借方计入的会计科目是()。
英国古典政治经济学家亚当.斯密提出的赋税原则包括()。[2007年真题]
阅读材料,根据要求完成教学设计。“获取网络信息的策略和技巧”模块强调学生在经历信息获取的过程中,掌握信息获取的策略与方法。教材着重要求学生学习网络信息检索的一般方法,归纳网络搜索引擎的使用技巧,这将为本模块其他内容和选修模块的继续学习奠定重要基础。本节学
证明:当0<a<b<π时,bsinb+2cosb+πb>asina+2cosa+πa.
A、Shortageoffunding.B、Lackofresources.C、Transportproblems.D、Poormanagement.C女士说该地区存在地理问题(geographicalproblems),并对此进行了
最新回复
(
0
)