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
What is the most fundamental difference between plants and animals?
What is the most fundamental difference between plants and animals?
admin
2009-03-16
72
问题
What is the most fundamental difference between plants and animals?
Green plants can produce their own food. They use substances in the environment. This process is known as photosynthesis. In contrast, all animals including humans, get their food either directly from plants or indirectly by eating animals which have eaten plants. So animals take in a wider range of foods than plants.
Plants are generally stationary. They do not have the power of locomotion. Animals, on the other hand, can usually move around. Therefore, plants appear to be less sensitive than animals although they respond in some ways to light, heat, physical contact and other stimuli.
In external appearance plants are usually green. They grow in a branching fashion at their extremities. Their growth continues throughout their lives. Animals, however, are very diverse in their external appearance. Their growth pattern is not limited to their extremities but is evenly distributed. Growth occurs in a definite period of time.
The most basic difference between plants and animals is in the unit of structures and functions: i.e. , the cell. Plant cells have a wall which is nonliving in chemical nature whereas animal cells do not have this characteristic.
选项
A、They have the power of locomotion.
B、They have a wider range of foods than animals.
C、They are very diverse in their external appearance.
D、They are less sensitive than animals.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/ZWPd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
WhathasbecomeabigissueforeducatorsinAmericanschoolsbetweenthesexes?
Childrenwhogriptheirpenstooclosetothewritingpointarelikelytobeatadisadvantageinexaminations,【C1】______tothe
Childrenwhogriptheirpenstooclosetothewritingpointarelikelytobeatadisadvantageinexaminations,【C1】______tothe
Thespeechismainlyabouttheorganizationofthecompany.
Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66~70,choosethemostsuitableparagraphfromthelis
Whenaconsumerfindsthathispurchasehasafaultinit,whatisthefirstthingheshoulddo?
Asthe2lstcenturybegins,anumberofleadersinpolitics,education,andotherprofessionsbelievethattheUnitedStatesmus
Whatdoesthelecturemainlyconcern?
A=BewitchedB=SavingPrivateRyanC=TeamAmerica:WorldPoliceD=GodfatherWhichmovie.tellsthestoryaboutthelastg
Whatdoesthespeakersuggestthatthestudentsshoulddoduringtheterm?
随机试题
placeanorder______
革兰阳性菌的细胞壁除肽聚糖外,还含有大量的
质量控制点是施工质量控制的重点,( )应作为质量控制点的对象。
最佳含水量是根据不同土类的性质,采用不同的试验方法确定的,测定无黏性自由排水粗粒土和巨粒土(包括堆石料)的最佳含水量可采用的方法是( )。
甲公司为增值税一般纳税企业,增值税税率为17%。甲公司原材料按实际成本核算,4月份发生以下经济业务:(1)企业将自己生产的应税消费品300件发放给300名职工作为福利,每人1件,每件产品成本为1000元,计税价格(售价)每件为2000元,该产品消费税税率
某种密码锁的界面是一组汉字键,只有不重复并且不遗漏地依次按下界面上的汉字才能打开,其中只有一种顺序是正确的。要使得每次对密码锁进行破解的成功率在万分之一以下,则密码锁的界面至少要设置__________个汉字键。
中国土壤资源丰富、类型繁多、世界罕见,主要土壤类型可概括为红壤、棕壤、褐土、黑土、栗钙土、漠土、潮土(包括砂姜黑土)、灌淤土、水稻土、湿土(草甸、沼泽土)、盐碱土、岩性土和高山土等13个系列。在中国境内,主要分布在秦岭—淮河一线以南,且集中于长江中下游平原
Thecitywasliterallydestroyed.
IntroduceyourchildrentotheworldwithFunSciencemagazine.FunScienceisanewmagazineforchildrenwitharticlesandpho
______thevarietythattheaveragefamilyhasinbeef,fish,poultry,andvegetarianrecipes,theyfindmostmealsunexciting.
最新回复
(
0
)