首页
登录
职称英语
Can trees talk? Yes, but not in words. Scientists have reason to believe tha
Can trees talk? Yes, but not in words. Scientists have reason to believe tha
游客
2023-10-05
18
管理
问题
Can trees talk? Yes, but not in words. Scientists have reason to believe that trees do communicate with each other. Not long ago, researchers learned some surprising things. First a willow tree attacked in the woods by caterpillars (毛虫) changed the chemistry of its leaves and made them taste so terrible that the caterpillars got tired of the leaves and stopped eating them. Then even more astonishing, the tree sent out a special smell—a signal causing its neighbours to change the chemistry of their own leaves and make them less tasty.
Communication, of course, does not need to be in words. We can talk to each other by smiling, shrugging our shoulders or making gestures. We know that birds and animals use a whole vocabulary of songs, sounds and movements. Bees dance their signals, flying in certain patterns that tell other bees where to find nectar (花蜜) for honey. So why shouldn’t trees have their own ways of sending message? [br] We can know from the passage the willow trees get protection by______.
选项
A、becoming thicker and thicker
B、changing their chemical elements in the leaves
C、communicating with each other
D、shaking the insects off themselves
答案
B
解析
细节辨认题。根据文章首段第五句可知,柳树被毛虫侵袭之后就会改变树叶的化学成分,让毛虫厌恶树叶的味道。由此可知。柳树保护自己免受毛虫侵袭的方式就是改变树叶中的化学成分。
转载请注明原文地址:https://tihaiku.com/zcyy/3073261.html
相关试题推荐
Neveruseanydrugunlessthereisagoodreason,especiallyforthewomanwh
Wehavechosenwhatwebelievetobethefivemostspectacularnaturalwonder
Wehavechosenwhatwebelievetobethefivemostspectacularnaturalwonder
ThroughWhitman’slines,wecansee______.[br]ThesuggestedreasonwhyWhitma
Accidentsarecaused;theydon’tjusthappen.Thereasonmaybeeasytosee:
Thereasonwhybirdsdon’tgetlostonlongflight______.[br]Underman-mades
Thereasonwhybirdsdon’tgetlostonlongflight______.[br]Theexperimentw
Thereasonwhybirdsdon’tgetlostonlongflight______.[br]Intotaldarknes
Thereasonwhybirdsdon’tgetlostonlongflight______.[br]Experimentsshow
Spaceandoceansarethenewworldwhichscientists(try)______toexplore.are
随机试题
Youmayhavenoticedthatthevoicesofpoliticiansseemtochangeastheyr
对鲁迅早期思想发生重要影响的是()A.阶级论 B.社会主义 C.进化论
盛装单一气体的气瓶必须专用,但可以加人添加剂。
设A.B均为n阶矩阵,则下列正确的为()。A、det(A+B)=detA+de
粉碎樟脑应采用A.水飞法B.加液研磨法C.低温粉碎D.超细粉碎法E.串料粉碎
运用头脑风暴法进行集体讨论时,应遵循的原则有()。A.鼓励别人改进想法 B.
外资股国际推介与询价的工作环节包括()。A:预路演 B:路演推介 C:簿记竞
教育心理学是一门研究学校情境中学与教的()的科学。 A.基本教育规律 B.基
A.确认为假药 B.按假药论处 C.确认为劣药 D.按劣药论处某医疗机构使
(2021年真题)根据《建设工程项目管理规范》,项目管理实施规划的编制过程包括:
最新回复
(
0
)