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
Life near the shore everywhere is affected by the tides, which come and go twice each day in a cycle of about twelve-and-a-half
Life near the shore everywhere is affected by the tides, which come and go twice each day in a cycle of about twelve-and-a-half
admin
2014-04-23
41
问题
Life near the shore everywhere is affected by the tides, which come and go twice each day in a cycle of about twelve-and-a-half hours—just different enough from the daily cycle of the sun so that there can be no regular relationship between the shore being alternately wet and dry and alternately light and dark. The extent of the tides varies greatly, from as little as one foot in inland seas like the Mediterranean, to fifty feet or so in the Bay of Fundy in Nova Scotia. In some parts of the world, one of the two daily tides rises higher and falls lower than the other; and tides at the time of new moon and full moon are generally greater than at other times. The extent of the intertidal zone thus varies from day to day as well as from place to place.
The kinds of organisms living in the region between the tidal limits depend very much on whether the shore is rocky, sandy, or muddy. Rocky shores have the most obviously rich faunas (某地区所有的动物),because of the firm anchorage for both animals and plants, and because of the small pools left by the retreating seas. Sandy shores, especially when exposed to surf (as they usually are), have the fewest kinds of animals.
The composition of the intertidal soil affects______.
选项
A、the level of pollution in that area
B、the nature of tides
C、the temperature of the water in that area
D、the number of animals and plants living in that area
答案
D
解析
文中第二段说:“在高潮线与低潮线之间地带生活的各种生物的生存在很大程度上依靠的是海岸是否由岩石、沙粒或泥土构成。岩岸很显然有最丰富的生物群,因为对于动物和植物来说,那里有坚固的泊地和退潮后留下的小水坑。而沙岸,特别是受海浪侵袭时(它们通常都是这样),却只有最少类别的生物存在。”由此可知,潮间带土壤的成分影响着该地区动物和植物的数量。
转载请注明原文地址:https://kaotiyun.com/show/B1WO777K
0
在职攻硕英语联考
相关试题推荐
Opinionpollsarenowbeginningtoshowthatwhoeveristoblameandwhateverhappensfromnowon,highunemploymentisprobably
Werecognizethatinthelongrun,innovationisakeydriverofgrowthforbothindividualcountriesandtheglobaleconomyas
Wheneverweareinvolvedinacreativetypeofactivitythatisself-rewarding,afeelingovercomesus—afeelingthatwecanc
Isitpossibletobebothfatandfit--notjustfitenoughtoexercise,butfitenoughtoliveaslongassomeonealotlighter?
Isitpossibletobebothfatandfit--notjustfitenoughtoexercise,butfitenoughtoliveaslongassomeonealotlighter?
Animalsaremorelikeusthanweeverimagined.Theyfeelpain,theyexperiencestress,andtheyshowaffection,excitementand
Whenimaginativementurntheireyestowardsspaceandwonderwhetherlifeexistsinanypartofit,theymaycheerthemselvesb
Everywhereweturn,weseethesymbolicprocessatwork.Thereare(41)thingsmendoorwanttodo,possessorwanttoposse
Everywhereweturn,weseethesymbolicprocessatwork.Thereare(41)thingsmendoorwanttodo,possessorwanttoposse
Lifeneartheshoreeverywhereisaffectedbythetides,whichcomeandgotwiceeachdayinacycleofabouttwelve-and-a-half
随机试题
道德
入侵检测的目的是()
下列国家中属于英美法系的是()
1.近些年来,用传统的纸笔写信的人越来越少,取而代之的是电子邮件。2.有人认为这种新的交流方式使人与人之间更加疏远了,但也有人认为正好相反。3.你对此的看法是……
患者男,59岁。咳嗽2个月,以干咳为主有午后低热。今天突然咯血500ml入院。止血措施首选
《关于加强农村宅基地管理的意见》(国土资发[2004]234号)规定,农村建设用地整理,要按照()的原则,按规划、有计划、循序渐进、积极稳妥地推进。
下列属于历史文化名城类型的有()。
要约以信件形式做出的,未载明日期的承诺期限自该信件的()开始计算。
遗传学对研究地球上的生命起源、医学、农业动植物和微生物育种,以至人类学和社会学等方面都有重要的指导意义。它是在动植物育种的基础上发展起来的,必然又可以回过来指导动植物育种的实践。抗菌素工业的兴起促进了微生物遗传学的发展,微生物遗传学的发展又推动抗菌素工业及
什么是产业内贸易?如何测度产业内贸易?[东北财经大学2011国际商务硕士;中国人民大学2012国际商务硕士]
最新回复
(
0
)