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
74
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 could drive the insects away.
B、They could keep the plants well-watered.
C、They could make the plants grow faster.
D、They could build devices to trap insects.
答案
D
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3597830.html
相关试题推荐
[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
[originaltext]HowdoAmericanhusbandsfeelabouthavingworkingwives?Ma
随机试题
asleep本题空格处是说在孩子们入睡后他们就讨论白天的一些事。asleep意为“睡着的,睡熟的”。
Areyouawarethatyouactuallypossesssixsenses?Thesixthisamuscularse
[originaltext]Mr.Green:Whileyou’rehere,Iwishyou’dhavealooka-roundt
Somepeoplethinktherailwaysaredeadformanyreasonsexceptthat______.[b
Itissoeasytoearnrewards!Awiderangeofpartnerswhereveryougo!
[originaltext]W:I’veworkedininternationaltradeallmylife.Myfatherdid
企业购进药品要做到票、账、货相符,购进票据和记录应保存至超过有效期1年,但不得少
假定框架梁柱节点核心区的剪力设计值Vj=1300kN,箍筋采用HRB335级钢筋
一个模型做22笔交易,盈利10比,共盈利50万元;其余交易均亏损,共亏损10万元
下列关于土地增值税扣除项目的规定,表述正确的有()。A.纳税人转让旧房及建筑物
最新回复
(
0
)