首页
登录
职称英语
Australian researchers have discovered electroreceptors(sensory organs desig
Australian researchers have discovered electroreceptors(sensory organs desig
游客
2024-01-13
66
管理
问题
Australian researchers have discovered electroreceptors(sensory organs designed to respond to electrical fields)clustered at the tip of the spiny anteater’ s snout. The researchers made this discovery by exposing small areas of the snout to extremely weak electrical fields and recording the transmission of resulting nervous activity to the brain. While it is true that tactile receptors, another kind of sensory organ on the anteater’ s snout, can also respond to electrical stimuli, such receptors do so only in response to electrical field strengths about 1, 000 times greater than those known to excite electro-receptors.
Having discovered the electroreceptors, researchers are now investigating how anteaters utilize such a sophisticated sensory system. In one behavioral experiment, researchers successfully trained an anteater to distinguish between two troughs of water, one with a weak electrical field and the other with none. Such evidence is consistent with researchers’ hypothesis that anteaters use electroreceptors to detect electrical signals given off by prey; however, re- searchers as yet have been unable to detect electrical signals emanating from termite mounds, where the favorite food of anteaters live. Still, researchers have observed anteaters breaking into a nest of ants at an oblique angle and quickly locating nesting chambers. This ability quickly to locate unseen prey suggests, according to the researchers, that the anteaters were using their electrorecep- tors to locate the nesting chambers. [br] The passage suggests that the researchers mentioned in the second paragraph who observed anteaters break into a nest of ants would most likely agree with which of the following statements?
选项
A、The event they observed provides conclusive evidence that anteaters use their electroreceptors to locate unseen prey.
B、The event they observed was atypical and may not reflect the usual hunting practices of anteaters.
C、It is likely that the anteaters located the ants’ nesting chambers without the assistance of electroreceptors.
D、Anteaters possess a very simple sensory system for use in locating prey.
E、The speed with which the anteaters located their prey is greater than what might be expected on the basis of chance alone.
答案
E
解析
第二段所提观察到食蚁兽闯入蚁穴的人会同意哪点?第二段的结论,见最后一句:食蚁兽用电接收器定位蚁巢。∴E正确,食蚁兽定位其猎物的速度,和完全基于机遇相比要快。文中L33—36提到这一现象。A.易混。关键在于原文的suggests和选项的conclusive evidence之间有差异。B.atypical从原文推不出。C.“without the assistance of electroreceptors”和原文相反。
转载请注明原文地址:http://tihaiku.com/zcyy/3359295.html
相关试题推荐
______thebookagain,shediscoveredthatshehadmissedalotinherfirstrea
Australianresearchershavediscoveredelectroreceptors(sensoryorgansdesigned
Australianresearchershavediscoveredelectroreceptors(sensoryorgansdesig
Australianresearchershavediscoveredelectroreceptors(sensoryorgansdesig
TwosuitsofbattlearmorwornbyKingHenryVIIIwerediscovered,onefromthe
X-rayexaminationofarecentlydiscoveredpainting—judgedbysomeauthorities
Aresearcherdiscoveredthatpeoplewhohavelowlevelsofimmune-systemactivit
Aresearcherdiscoveredthatpeoplewhohavelowlevelsofimmune-systemactivit
Scientistshaverediscoveredcertainfoodcrops,oncecommonlycultivatedinthe
Researchersstudyingsetsofidenticaltwinswhowereraisedapartindissimilar
随机试题
BELIE:A、preventB、exhibitC、regulateD、averE、inflateD
Thisisanexcitingmoment,wherethetorchandtorchrelayroutewillbepr
Iboughtanewsweaterinanewly-openclothes-market.Butwhatapityitwasth
招标代理机构应当具备的条件是()。Ⅰ.有从事招标代理业务的营业场所和相应资金
反应器按基本结构分,不包括( )。A.浮头式反应器 B.管式反应器 C.釜
既可用于热淋、砂淋、石淋,又可用于恶疮肿毒、毒蛇咬伤的药物是A.猪苓B.冬葵子C
共用题干 BeautyorComfort?PeopleinBeijin
深化“放管服”改革。全面实施市场准入负面清单制度。在全国推开“证照分离”改革,重
正是因为畏惧和仇视舆论监督,少数无良官吏要绞尽脑汁甚至是_地扼杀舆论监督。个别
对于两个变量x、Y,格兰杰因果关系检验的方程主要有()。
最新回复
(
0
)