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
69
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、Quiet plants.
B、Well-watered plants
C、Healthy plants.
D、Thirsty plants.
答案
D
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3597829.html
相关试题推荐
[originaltext]Whatarethezebrastripesonthetomatosoupcansandpotato
[originaltext]Whatarethezebrastripesonthetomatosoupcansandpotato
[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
WhatWilltheWomando?[br][originaltext]M:There’snothingaTVbutbasketball
WhatistheLowestCommonDenominatorof5/8and3/4?8TheLowestCommonDenomina
TheInternethasbecomealifelineofmoderneconomyandisanindispensablepar
一个二端口网络的输入端口和输出端口的电压和电流共有6个。()
关于子宫平滑肌肉瘤哪项不正确A.可由子宫肌瘤恶变而成 B.肉瘤剖面无漩涡状结构
王女士是一名乳腺癌早期患者,她觉得是因为自己“上辈子作了孽”,才被如此惩罚,性格
共用题干 一般资料:求助者,女性,29岁,国外某企业研究人员。案例介绍:求助者
根据我国现阶段的(),影子汇率换算系数取1.08。A:进出口结构B:换汇成本
某卷烟厂2021年11月收购烟叶用于生产卷烟,实际支付的价款总额为48
甲公司2013年5月1日银行存款账户与应付账款账户余额如下:期初余额银行存款84
最新回复
(
0
)