首页
登录
职称英语
Conservationists have believed that by concentrating their preservation efforts
Conservationists have believed that by concentrating their preservation efforts
游客
2024-01-13
7
管理
问题
Conservationists have believed that by concentrating their preservation efforts on habitats rich in an easily surveyed group of species, such as birds, they would thereby be preserving areas rich in overall species diversity. This belief rests on a view that a geographical area rich in one group of species will also be rich in the other group’s characteristic of the entire regional climate zone. Which of the following findings about widely scattered tracts 10 kilometers by 10 kilometers in a temperate climate zone would most seriously challenge the conservationists’ assumptions?
选项
A、The tracts show little damage from human intrusion and from pollution by human activities.
B、Where a certain group of species, such as birds, is abundant, there is also an abundance of the species, such as insects, on which that group of species feeds, or in the case of plants, of the land and water resources it requires.
C、The area of one of the tracts is generally large enough to contain a representative sample of the organisms in the region.
D、There is little overlap between the list of tracts that are rich in species of butterflies and the list of those that are rich in species of birds.
E、The highest concentration of individuals of rare species is found where the general diversity of species is greatest.
答案
D
解析
本题是要找一个选项对Conservationists assumption进行反对,即找一个选项说明富有一个物种的地区可能不会富有其他同气候区的物种。(D)选项指出在蝴蝶种类较多的地方,鸟类的种类不一定多,从而指出了Conservationists assumption的错误,所以(D)为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3358850.html
相关试题推荐
Themanagerdecidedtogivethejobto______hebelievedhadastrongsenseofdu
_____isgenerallybelieved,thereisnowateronthemoon.A、AsB、WhatC、ThatD、I
Tothescientists’delight,theireffortshaveincreasedpeople’s___________oft
Priorto1975,unioneffortstoorganizepublic-sectorclericalworkers,mostof
Federaleffortstoaidminoritybusinessesbeganinthe1960swhentheSmal
Federaleffortstoaidminoritybusinessesbeganinthe1960swhentheSmal
Federaleffortstoaidminoritybusinessesbeganinthe1960swhentheSmal
Federaleffortstoaidminoritybusinessesbeganinthe1960swhentheSmal
Federaleffortstoaidminoritybusinessesbeganinthe1960swhentheSmal
Priorto1975,unioneffortstoorganizepublic-sectorclericalworkers,mos
随机试题
Part-timejobsarebeneficialtocollegestudentsinmanyaspects,ands
如果你和同事在工作中发生了矛盾,后来发现是一场误会。对此,你通常会()。A.等
线性方程组对任意常数b1,b2,…,bn都有解的充要条件是r(A)=( )。(
(2017年)某公司拖欠2016年度增值税42万元,催缴无效,经县级税务局局长批
A.气能生津 B.气能行津 C.气能摄津 D.津能载气 E.津血同源"吐
原发性糖尿(真性)主要病因是A.胰岛素分泌量相对或绝对不足B.甲状腺功能亢进C.
产妇产后多久能恢复性生活A.2周 B.4周 C.6周 D.8周 E.12
D
牙齿萌出的生理特点哪项是错误的()A.在一定时间内萌出 B.同颌同名牙左侧
下列设备中,属于安全防范系统的入侵报警探测器有( )。A.红外线探测器 B.
最新回复
(
0
)