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
Recent studies of the Philippine fruit bat fauna have confirmed some previous hypotheses regarding bats on oceanic islands: for
Recent studies of the Philippine fruit bat fauna have confirmed some previous hypotheses regarding bats on oceanic islands: for
admin
2022-03-28
92
问题
Recent studies of the Philippine fruit bat fauna have confirmed some previous hypotheses regarding bats on oceanic islands: for example, species richness [the number of different species in a particular area] and abundance are generally highest in the lowlands and decrease with increasing elevation. With few exceptions, each endemic species [species native to a particular place] is restricted to the modern islands that made up a single island during periods of low sea level,
and genetic differentiation has been influenced by the ecology of the species and the current and past geographic and geological conditions.
However, far more previous hypotheses have been overturned than supported. Some endemic Philippine species use disturbed habitat as extensively as nonendemic species that are widespread in Southeast Asia. Levels of genetic variation within all species are high, not low, and rather than showing evidence of an intrinsic vulnerability to extinction from natural causes, independent lineages of these bats have persisted in rather small areas for very long periods of time (often millions of years) in spite of frequent typhoons and volcanic eruptions. While colonization from outside areas has clearly contributed to the high species richness, speciation within the archipelago has contributed at least a quarter of the total species richness, including many of the most abundant species.
Which of the following can be inferred from the passage about the “recent studies”?
选项
A、They point to the need for a significantly revised perspective on oceanic island bats generally.
B、They were undertaken with the assumption that Philippine fruit bats were somewhat atypical among oceanic bats.
C、They remain somewhat controversial among researchers because of the number of standard hypotheses that they tested.
D、They have largely confirmed what scientists thought about the Philippine fruit bat.
E、They suggest that bats on oceanic islands are more vulnerable to extinction than previously thought.
答案
A
解析
因为很多都被最近的研究推翻了,因此需要修正观点,正确。B项文中没提atypical。C项文中未提及。D项largely程度太强。E项根据第五句,该项内容表述相反。
转载请注明原文地址:https://www.kaotiyun.com/show/uUVO777K
本试题收录于:
GRE VERBAL题库GRE分类
0
GRE VERBAL
GRE
相关试题推荐
BetweentheeighthandeleventhcenturiesA.D.,theByzantineEmpirestagedanalmostunparalleledeconomicandculturalreviv
Attheendofthenineteenthcentury,arisinginterestinNativeAmericancustomsandanincreasingdesiretounderstandNative
ManyUnitedStatescompanieshave,unfortunately,madethesearchforlegalprotectionfromimportcompetitionintoamajorline
TheancientGreekplaywrightEuripidesfollowedtheestablishedconventionsofversecompositionlessrigorouslyattheendofh
NoonecanbelicensedasanelectricianinParkerCountywithoutfirstcompletingacertaincourseinelectricalsafetyprocedu
TheSupremeCourtisnolongerabletokeeppacewiththetremendousnumberofcasesitagreestodecide.TheCourtschedulesan
Aperson’scholesterollevelwilldeclinesignificantlyifthatpersonincreasesthenumberofmealseatenperday,butonlyif
Zelda:Dr.Ladlow,aresearchpsychologist,hasconvincinglydemonstratedthathistheoryaboutthedeterminantsofratbehavior
Thepopulationofperegrinefalconsdeclinedrapidlyduringthe1950’sand1960’sandreachedanall-timelowintheearly1970’
AlthoughDamonhadampletimeearlierinthemonthtocompletethepaperheisscheduledtopresentataprofessionalconference
随机试题
有接触传染性的化脓性感染是()。
患者,女性,二尖瓣狭窄,心脏听诊可闻及开瓣音,它的特点不包括
我国高血压病最常见的死亡原因是()
必要氮损失不包括()
()是期权买方行使权利时,买卖双方交割标的物所依据的价格。
下列各项中,计算个人所得税自行申报的年所得时允许扣除的项目有()。(2013年)
人们因胃酸分泌过多所食用的“抗酸剂”的主要成分可能是:
在共产国际七大上号召建立反法西斯统一战线的领导人是()。
根据婚姻法的有关规定,下列选项中属于无效婚姻情形的有()。
A、Becausetheycanenslaveustoreasons.B、Becausetheygiveusthepowertomakeourselvesdistinctive.C、Becausetheygiveus
最新回复
(
0
)