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
Homeostasis refers to any process, such as negative feedback, that living things employ to maintain stable conditions ind
Homeostasis refers to any process, such as negative feedback, that living things employ to maintain stable conditions ind
admin
2011-01-17
37
问题
Homeostasis refers to any process, such as negative feedback, that living
things employ to maintain stable conditions indispensable for survival, and
which arises from balances between forces and factors mutually influencing each
Line other. Disturbance, or departure from equilibrium is of more consequence than
(5) negative feedback: systems cannot correct themselves without straying. A car
and its driver, for instance, can be regarded as a homeostatic system seeking to
keep the car moving on track. Thus, if the car skids, the driver automatically
responds by quickly steering the wheel in the opposite direction, but such
abrupt negative feedback usually overcorrects. Likewise, if the magnitude of
(10) correction is commensurate with the disturbance that triggered it, the
correction may become an impressed change in the direction opposite to that of
the original disturbance. Each feedback is of lesser magnitude than the last, so
that as the oscillations of the system dampen, negative feedback achieves its
goal in both artificial and natural systems.
Which of the following would be most analogous to the process of dampening oscillations described in the paragraph?
选项
A、During a rainstorm, water rises to the level of a sewer drain, siphoning off and thus remaining at constant level.
B、A rubber ball which bounces off the ground multiple times, than gradually comes to rest.
C、A meteor hurtles through space indefinitely, due to the laws of inertia.
D、A clothing iron is left on, then becomes so hot that it catches on fire, burning its own cord and destroying its power source.
E、A baseball pitcher knows he tends to through to the left of home plate, and then in trying to throw to the right, overcorrects.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/HQjO777K
本试题收录于:
GRE VERBAL题库GRE分类
0
GRE VERBAL
GRE
相关试题推荐
Haveyoueverheardofapawpaw(木瓜)?Ifnot,donotfeelbad.ManyAmericansdonotknowofthefruit,althoughitisnativeto
Atpresenttime,peoplehaveatrendtoliveinthe______.
Somepsychologists(心理学家)maintainthatmentalactssuchasthinkingarenotperformedinthebrainalone,butthatone’smuscl
LivinginthecentralAmericandeserthasitsproblems,______obtainingwaterisnottheleast.
Jim’sjobistokeephisboss______ofthelatestdevelopmentofthatproductinEurope.
TheannualcampaigntomakeSingapore’sthreemillionpeoplemorepoliteendedyesterdayandwasimmediatelyfollowedbyanother
Agingisapropertyofallanimalsthatreachafixedsizeatmaturity,andthevariationsinlifespansamongdifferentspecies
TheBritishAdmiraltyandtheWarOfficemetinMarch1892toconsiderapossibleRussianattempttoseizeConstantinopleandho
Thedelegates’behaviorattheconventionwasutterlydisgracefulandfullydeservingofthe______itprovoked.
Carruthers’latestliterarycriticism(i)______herreputationfortrenchantcommentary;despiteitsintriguingtitleandthefu
随机试题
下肢外伤后,引起肢体极度外旋的损伤是
第一恒磨牙颊面剥脱性龋齿可选治疗药物是
肺动脉高压早期的x线表现是
药典、卫生部标准、省(市)自台区标准是《中华人民共和国药典》是
根据以下资料,回答下列问题。2012年1~11月份,全国民间固定资产投资201624亿元,同比增长25%。民间固定资产投资占固定资产投资的比重为61.8%,比1~10月份下降0.1个百分点。分地区看,东部地区民间固定资产投资99138
治安管理处罚应由县级以上人民政府公安机关决定,但以下哪些处罚是例外,可以由派出所决定()。
学校课程改革中主要是改革()
=______
在面向对象的程序设计中,可被对象识别的动作称为( )。
Whattypeofeventisthespeakerdiscussing?
最新回复
(
0
)