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
2024-07-23
55
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/3689523.html
相关试题推荐
Cantreestalk?Yes,butnotinwords.Scientistshavereasontobelievetha
Cantreestalk?Yes,butnotinwords.Scientistshavereasontobelievetha
Cantreestalk?Yes,butnotinwords.Scientistshavereasontobelievetha
Haveyoueveraskedhimthereason______mayexplainhisabsencefromtheclass?A
Thereasonwhybirdsdon’tgetlostonlongflights______.[br]Intotaldarkne
Thereasonwhybirdsdon’tgetlostonlongflights______.[br]By"hisoutdoor
Thereasonwhybirdsdon’tgetlostonlongflights______.[br]Duringdaylight
Bytheendofthiscentury,thescientists(discover)______acureforthedise
Manhasabigbrain.Hecanthink,learnandspeak.Scientistsusedtothinkthatm
Accidentsarecaused;theydon’tjusthappen.Thereasonmaybeeasytosee:
随机试题
Wecannotformasoundopinionwithoutfacts,forweneedtohavefactualknowle
TheMexicaneconomywentoffacliffinthesecondthreemonthsof2009,wit
在护理教学过程所包含的几对矛盾中,最基本的矛盾是A.学生与所学知识、发展能力之间
建筑工程施工质量验收应划分为单位工程、分部工程、分项工程3类。
销售机构在进行市场细分时应遵循的原则不包括()。A.易入原则 B.不可测
某种理想气体的总分子数为N,分子速率分布函数为f(v),则速度在v1~v2区间内
留置担保的范围不包括()。A.主债权及利息 B.违约金 C.损害赔偿金
牙体组织切片中,见牙髓中有一周围有纤维组织包绕的脓肿,其诊断应为A.急性浆液性牙
以可以转让的基金份额、股权出质的,质权自办理出质登记时设立。()
(2020年真题)关于向城镇排水设施排放污水的说法,正确的是()。A.各类施
最新回复
(
0
)