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
There are both great similarities and considerable diversity in the ecosystems that evolved on the islands of Oceania in and aro
There are both great similarities and considerable diversity in the ecosystems that evolved on the islands of Oceania in and aro
admin
2022-07-08
115
问题
There are both great similarities and considerable diversity in the ecosystems that evolved on the islands of Oceania in and around the Pacific Ocean. The islands, such as New Zealand, that were originally parts of continents still carry some small plant and animal remnants of their earlier biota (animal and plant life), and they also have been extensively modified by evolution, adaptation, and the arrival of new species. By contrast, the other islands, which emerged via geological processes such as volcanism, possessed no terrestrial life, but over long periods, winds, ocean currents, and the feet, feathers, and digestive tracts of birds brought the seeds of plants and a few species of animals. Only those species with ways of spreading to these islands were able to undertake the long journeys, and the various factors at play resulted in diverse combinations of new colonists on the islands. One estimate is that the distribution of plants was 75 percent by birds, 23 percent by floating, and 2 percent by wind.
The migration of Oceanic biota was generally from west to east, with four major factors influencing their distribution and establishment. The first was the size and fertility of the islands on which they landed, with larger islands able to provide hospitality for a wider range of species. Second, the further east the islands, generally the less the species diversity, largely because of the distance that had to be crossed and because the eastern islands tended to be smaller, more scattered, and remote. This easterly decline in species diversity is well demonstrated by birds and coral fish. It is estimated that there were over 550 species of birds in New Guinea, 127 in the Solomon Islands, 54 in Fiji, and 17 in the Society Islands. From the west across the Pacific, the Bismarck Archipelago and the Solomon Islands have more than 90 families of shore fish (with many species within the families), Fyi has 50 families, and the Society Islands have 30.
Third, the latitude of the islands also influenced the biotic mix, as those islands in relatively cooler latitudes, notably New Zealand, were unsuited to supporting some of the tropical plants with which Pacific islands are generally associated.
Finally, a fourth major factor in species distribution, and indeed in the shaping of Pacific ecosystems, was wind. It takes little experience on Pacific islands to be aware that there are prevailing winds. To the north of the equator these are called north-easterlies, while to the south they are called south-easterlies. Further south, from about 30° south, the winds are generally from the west. As a result on nearly every island of significant size there is an ecological difference between its windward and leeward (away from the wind) sides. Apart from the wind action itself on plants and soils, wind has a major effect on rain distribution. The Big Island of Hawaii is often cited as a prime example; one can leave Kona on the leeward side in brilliant sunshine and drive across to the windward side where the city of Hilo is blanketed in mist and rain.
The word remnants in Paragraph 1 is closest in meaning to________.
选项
A、remainders
B、reminders
C、reproductions
D、resemblances
答案
A
解析
题干中remnants意为“遗迹;遗骸”,只有A项remainders(剩余物,残存物)与其意思相近,故正确答案为A项。B项“提醒”、C项“复制;繁衍”、D项“相似”均不符合题意,故都予以排除。
转载请注明原文地址:https://kaotiyun.com/show/W7MO777K
本试题收录于:
CATTI二级笔译综合能力题库翻译专业资格(CATTI)分类
0
CATTI二级笔译综合能力
翻译专业资格(CATTI)
相关试题推荐
Whilelongwalksaregreat,campingforseveraldaysisabetter,more【C1】________experience.Campinggivesusalltheability
Accordingtothepassage,gender-neutralconstructionsshouldbeadvocatedbecause______.
Notonlydotheproposedwarningscontaingraphicimages,thewritteninformationwouldalsobeeasiertosee.
Despitemajorchangesinthecausesofdeathsincethe1900s,theassociationbetweendeprivationand【C1】______remainsfirmlyen
It’snosurprisethatJenniferSenior’sinsightful,provocativemagazinecoverstory,"ILoveMyChildren,IHateMyLife,"isa
Forallitsextremes,Venusisa(n)incalculablelaboratoryforresearchersstudyingtheweatherandclimateofearth.
Thoughthepublicsecuritysystemisgivenconsiderableauthoritytocarryoutlaws,thesalaryofitsstaffisrelativelylowa
Inadditiontorice,weneedto________ourdietwithfish,meatandvegetable.
Avoideggs.Drink8glassesofwateraday.Eatingcarbswill(1).Nutritionaladvicesuchasthishasbeentoutedforyearsbu
A、Awideselectionofinvestments.B、Alimitedrangeofgrowthstock.C、Agroupoflowriskbondsandcash.D、Agroupofhighri
随机试题
下面哪种方法可以将填充图层转化为一般图层?
外伸梁如图所示,F=qa/2,M=2qa2,已知q、a,则A、B两点的约束反力分别为()。
以下软件中,属于应用软件的是_______。
具有催化作用的小RNA称为
患者女性,46岁。2年前因左卵巢癌行双侧附件切除及腹腔减瘤术,病理:(左卵巢)浆液性卵巢癌。术后5疗程化疗,于一年前结束。卵巢癌最常见的转移模式是
桥面铺装实测项目有()。
货币市场基金是重要的现金规划工具之一,根据相关规定,货币市场基金不得投资于()。
2013年,某市新设立私营企业8142户,占全市新设立各类企业总数74.2%。从业人员125197人,同比增长了12%。全市新发展的私营企业从事第一产业的有146户,注册资金1.76亿元,比上年同期增长了41.7%和35.4%。与上年相比,第三产业仍然是私
《英雄交响曲》是()的代表作之一。
以权利作为客体的物权类型包括()。
最新回复
(
0
)