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 is something intrinsically fascinating about the idea of evolutioa What principles govern the evolution of a species? And
There is something intrinsically fascinating about the idea of evolutioa What principles govern the evolution of a species? And
admin
2023-01-17
35
问题
There is something intrinsically fascinating about the idea of evolutioa What principles govern the evolution of a species? And what does evolution tell us about the place of Homosapiens in the grand order of things? The writer George Bernard Shaw held that a mystical guiding force impels life to evolve toward eventual perfection Modem scientists may not believe in this guiding force or in the possibility of perfection, but many would agree that life has been improving itself through evolution for billions of years. (Note that this conveniently makes Homosapiens, a very recent product of evolution, one of the newest and most improved versions of life.) In the view of these scientists, constant competition among species is the engine that drives the process of evolution and people’s life upward
To Darwin, nature was a surface covered with thousands of sharp wedges, all packed together and jostling for the same space. Those wedges that fared best moved toward the center of the surface, improving their position by knocking other wedges away with violent blows. The standard example that textbooks give of such competitive wedging is the interaction between the brachiopods and the clams. Clams were long held to be ancient undersea competitors of
brachiopods
due to the fact that the two species inhabited the same ecological niche. Clams are abundant today, whereas brachiopods (dominant in ancient times) are not. Modem clams are also physiologically more complex than brachiopods are. The standard interpretation of these facts is that the clams’ physiology was an evolutionary improvement that gave them the ability to "knock away" the brachiopods.
In recent years, however, the prominent naturalists Stephen Jay Gould and C. Brad Calloway have challenged the validity of this example as well as the model it was meant to support. Gould and Calloway found that over most geological time clams and brachiopods went their separate ways. Never did the population of brachiopods dip as that of the clams rose, or vice versa In fact, the two populations often grew simultaneously, which belies the notion that they were fighting fiercely over the same narrow turf and resources. That there are so many more clams than brachiopods today seems rather to be a consequence of mass deaths that occurred in the Permian period. Whatever caused the mass deaths—some scientists theorize that either there were massive ecological or geological changes, or a
comet
crashed down from the heavens—clams were simply able to weather the storm much better than brachiopods.
Out of these observations, Gould and Calloway drew a number of far-reaching conclusions. For instance, they suggested that direct competition between species was far less frequent than Darwin thought. Perhaps nature was really a very large surface on which there were very few wedges, and the wedges consequently did not bang incessantly against each other. Perhaps the problem facing these wedges was rather that the surface continually altered its shape, and they had to struggle independently to stay in a good position on the surface as it changed.
So where does that leave Homosapiens if evolution is a response to sudden, unpredictable and sweeping changes in the environment rather than the result of a perpetual struggle? No longer are we the kings of the mountain who clawed our way to the top by advancing beyond other species. We are instead those who looked to the mountains when floods began to rage below and then discovered that living high up has its definite advantages, so long as our mountain doesn’t decide to turn into a volcano.
It can be inferred from Gould and Calloway’s findings about clams and brachiopods that________.
选项
A、the two species never competed for the same turf
B、they fought fiercely for the same resources
C、clams had genetic ability to evade disasters
D、brachiopods were physiologically less complex than clams
答案
A
解析
根据第3段第4句“……他们为了争夺有限的地盘和资源而进行激烈斗争的这种说法是不成立的”,因此A项“这两个物种从没有为地盘进行竞争”正确。B项“蛤类和腕足类为了同一资源而进行激烈斗争”,与文意相悖,排除;C项“蛤类有躲避灾难的基因能力”,文中指没有提及避灾能力是否是天生的,排除;D项“腕足类在生理结构上没蛤类那么复杂”,这不是古和卡的发现,也排除。
转载请注明原文地址:https://kaotiyun.com/show/QNcD777K
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
Nobodyeverproteststhatanelementaryschoolshouldbedescribedas"manned"insteadof"staffed,"butdaretosuggesta"men
Nobodyeverproteststhatanelementaryschoolshouldbedescribedas"manned"insteadof"staffed,"butdaretosuggesta"men
Giventheadvantagesofelectronicmoney,youmightthinkthatwewouldmovequicklytothecashlesssocietyinwhichallpaymen
Whilemanyworkersarewillingtolearnnewskillsorcompletelyretraintoimprovetheirfutureemployability,fewfeeltheyar
WhydopeoplereadnegativeInternetcommentsanddootherthingsthatwillobviouslybepainful?Becausehumanshaveaninheren
Mammalsvaryenormouslyinsize,fromweighinglessthanapennytomeasuringmorethanthreeschoolbusesinlength.Somegroup
Theworldisonthetopofastaggeringriseinthenumberofoldpeople,andtheywilllivelongerthaneverbefore.【C1】_______
Socialplatformslargeandsmallarestrugglingtokeeptheircommunitiessafefromhatespeech,extremistcontent,harassmenta
A)Vistawillalsohaveconsumerappeal,althoughperhapsnotasmuchaspreviousreleasesofWindows.WithVista,Microsoftis
考虑软件架构时,重要的是从不同的视角(perspective)来检查,这促使软件设计师考虑架构的不同属性。例如,展示功能组织的____①____能判断质量特性,展示并发行为的____②____能判断系统行为特性。选择的特定视角或视图也就是逻辑视图、进程视图
随机试题
关于大理石特征的说法,正确的有()。
联结人与自然界的中介是
有关溶血反应的治疗,应采取的措施包括
急性梗阻性化脓性胆管炎的表现是
()不在区位分析的范围内。
0,2,2,4,6,( )
一间宿舍可住多个学生,则实体宿舍和学生之间的联系是()。
为了使标签控件在显示其内容时不覆盖其背景内容,需进行设置的属性为
在窗体上画一个名称为Command1的命令按钮,并编写如下事件过程:PrivateSubCommandl_Click()x=1s=0Fori=1To5x=x/iS=S+XNext
We’veallhadtostartconversationsthatwedreadedhaving—everythingfromaskingforaraisetoaskingforadivorcetoaski
最新回复
(
0
)