首页
登录
职称英语
[originaltext] We all scream for water when thirsty. But do you know that in
[originaltext] We all scream for water when thirsty. But do you know that in
游客
2024-05-14
55
管理
问题
We all scream for water when thirsty. But do you know that in very hot dry weather, plants also make faint sounds as if they am crying out for help? You see, in a plant’ s stem, there are hundreds of water pipes that bring water and minerals from the soil all the way up to the leaves. As the ground turns dry, it becomes harder and harder for the plants to do this. In severe droughts, plants have to fight to pull out any water available. Scientist Robert Winter has found out that when it is really bad, their water pipes snap from the tension like rubber bands. When that happens, the whole plant vibrates a little. The snapping pipes make noises ten thousand times more quiet than a whisper.
Robert knows that healthy well-watered plants are quiet. He also knows that many insects prefer a attacking dry plants rather than healthy plants. How do the insects know which are healthy plants and which are not? Robert thinks that the insects may listen for the plants that cry, and then they may buzz in m kill. To test his theory, Robert is using a device that can imitate plant cries. He attaches it to a quiet healthy plant so that the plant sounds thirsty. Then he watches the insects to see ff they attack more often than usual. If he is fight, scientists could use the insects’ ability against them. They could build traps that imitate crying plants, so that when the insects buzz in to eat, they won’ t buzz out.
选项
A、They give out faint cries.
B、They make noises to drive away insects.
C、They extend their water pipes.
D、They become elastic like rubber bands.
答案
A
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3597828.html
相关试题推荐
[originaltext]Whatarethezebrastripesonthetomatosoupcansandpotato
[originaltext]Whatarethezebrastripesonthetomatosoupcansandpotato
[originaltext]Theclassiccaseinmedicalhistoryofatyphoidcarrierist
[originaltext]M:Mathdepartment,ProfessorWebsterspeaking.W:Hello,Prof.W
[originaltext]M:Mathdepartment,ProfessorWebsterspeaking.W:Hello,Prof.W
[originaltext]M:Joanandherfriendwenttoanewrestaurantlastnightandsa
[originaltext]M:Joanandherfriendwenttoanewrestaurantlastnightandsa
[originaltext]M:Joanandherfriendwenttoanewrestaurantlastnightandsa
[originaltext]M:Joanandherfriendwenttoanewrestaurantlastnightandsa
[originaltext]HowdoAmericanhusbandsfeelabouthavingworkingwives?Ma
随机试题
Lucyis______Larry,whileshestudiesbetterthan______.A、notcleveras...she
Mostgreatartistsareexceptionally______people.A、sensitizedB、sensitiveC、sens
Whydoesthestudentgotoseetheprofessor?[br]Listenagaintopartofthec
WithHowells,JamesandMarkTwainactiv
现代意义的会计不再局限于记账、算账等一些基础的会计工作,还需要参与本企业的经营管
有关同化激素的作用,不正确的是A.同化作用强,雄激素样作用弱B.促进蛋白质的同化
2020年,我国粮食种植面积11677万公顷,比上年增加70万公顷。其中,稻谷种
小王因涉嫌欺诈罪被起诉,社会工作者撰写了小王的社会调查报告提交法院作审判参考。该
营业地在我国的甲公司向营业地在英国的乙公司订购电脑2000台。合同规定,电脑价格
(2015年真题)项目管理任务分工表是()的一部分。A.项目组织设计文件 B
最新回复
(
0
)