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
考研
【F1】The evolution of intelligence among early large mammals of the grasslands was due in great measure to the interaction betwee
【F1】The evolution of intelligence among early large mammals of the grasslands was due in great measure to the interaction betwee
admin
2016-03-22
18
问题
【F1】
The evolution of intelligence among early large mammals of the grasslands was due in great measure to the interaction between two ecologically synchronized groups of these animals, the hunting carnivores and the herbivores that they hunted.
The interaction resulting from the differences between predator and prey led to a general improvement in brain functions; however, certain components of intelligence were improved far more than others.
【F2】
The kind of intelligence favored by the interplay of increasingly smarter catchers and increasingly keener escapers is defined by attention—that aspect of mind carrying consciousness forward from one moment to the next.
It ranges from a passive free floating awareness to a highly focused, active fixation, the range through these states is mediated by the arousal system, a network of tracts converging from sensory systems to integrating centers in the brain stem. From the more relaxed to the more vigorous levels sensitivity to novelty is increased.【F3】
The organism is more awake more vigilant, this increased vigilance results in the apprehension of ever more subtle signals as the organism becomes more sensitive to its surroundings.
The processes of arousal and concentration give attention to its direction. Arousal is at first general with a flooding of impulses in the brain stem; then gradually the activation is channeled. Thus begins concentration, the holding of consistent images. One meaning of intelligence is the way in thigh these images and other alertly searched information are used in the context of previous experience. Consciousness links past attention to the present and permits the integration of details with perceived ends purposes.
The elements of intelligence and consciousness come together marvelously to produce different styles in predator and prey. Herbivores and carnivores develop different kinds of attention related to escaping or chasing.【F4】
Although in both kinds of animal arousal stimulates the production of adrenaline and norepinephrine by the adrenal glands the effect in herbivores is primarily fear, whereas in carnivores the effect is primarily aggression.
For both, arousal attunes the animal to what is ahead. Perhaps it does not experience forethought as we know it but the animal does experience something like it.
The predator is searchingly aggressive inner directed, used by the nervous system and the adrenal hormones, but aware in a sense closer to human consciousness than, say, a hungry lizard’ s instinctive snap at a passing beetle. The large mammal predator is working out a relationship between movement and food, sensitive to possibilities in cold trails and distant sounds and yesterday’s unforgotten lessons. The herbivore bray is of a different mind.【F5】
Its mood of wariness rather than searching and its attitude of general expectancy instead of anticipating are silk thin veils of tranquility over an explosive endocrine system.
【F3】
选项
答案
生物体更清醒更警觉;当生物体对环境更敏感时,不断增强的警惕感会造成对微弱的信号也有反应。
解析
转载请注明原文地址:https://kaotiyun.com/show/2dsZ777K
0
考研英语一
相关试题推荐
Newscientificstudiesrevealthehiddencostsofmultitaskingastechnologyincreasinglytemptspeopletodomorethanonethin
TheHolocaustwastheNazis’assaultontheJewsbetween1933and1945.ItculminatedinwhattheNaziscalledthe"FinalSoluti
ScientistsinBelgiumspentmonthsbuildingroboticversionsofthedreadedverminandthenletthemlooseinacommunityofrea
Oneofthedifferencesbetweenanimalsandmachinesisthatanimalbodiescanrepairmuchofthedamagethatacruelandhostile
Oneofthedifferencesbetweenanimalsandmachinesisthatanimalbodiescanrepairmuchofthedamagethatacruelandhostile
Scientistshavebegunusingsatellite-basedsystemstopredictvolcaniceruptions.Thisallowsblanketcoverageoftheentirewo
Despiteacoolingoftheeconomy,hightechnologycompaniesarestillcryingoutforskilledworkers.TheInformationTechnology
Despiteacoolingoftheeconomy,hightechnologycompaniesarestillcryingoutforskilledworkers.TheInformationTechnology
Despiteacoolingoftheeconomy,hightechnologycompaniesarestillcryingoutforskilledworkers.TheInformationTechnology
随机试题
甲向乙签发了一张银行承兑汇票。票面金额为12万元,见票后3个月付款。乙不慎遗失汇票,被丙拾得后,丙立即伪造乙的签章,将汇票转让给自己,然后拿到A银行贴现。A银行审查了汇票背书的连续性后,给予贴现。汇票一直未被提示承兑。这时乙发现汇票丢失,立即向法院申请公示
在法的遵守中,影响人们守法的程度和水平的主观因素是()
评价一台CT机的优劣,正确的是
血块退缩不良的最主要原因是
只受对侧大脑运动皮层支配的脑神经运动核为
咨询工程师在投资项目投资机会研究中,首先应分析()。
Therequirementsforhighschoolgraduationhavejustchangedinmycommunity.Asaresult,allstudentsmust【C1】______sixtyhou
大革命虽然失败了,但其意义依然重大,主要有()
设F(x)是连续型随机变量X的分布函数,常数a>0,则∫-∞+∞[F(x+a)一F(x)]dx=____________.
Thereareagreatmanybooks,websites,andtraining【C1】______todaymoreorlessdedicatedtotheideathatbeingboredisama
最新回复
(
0
)