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
60
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:https://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
Inthesimplestterms,amarketistheplacewheresellermeetsbuyertoexc
220/380V低压架空电力线路接户线,在进线处对地距离不应小于多少m?A.2.
在对某类反光膜逆反射系数测试多次之后所得结果与该类型反光膜标准规定值之差称为随机
下列教学目标属于“过程与方法”范畴的是()。A.知道化学式研究物质的组成、结构、
以下关于“具有中国特色国际领先的能源互联网企业”中“具有中国特色”的描述,不正确
房地产市场的运行环境中,( )涉及资本的安全性,是投资者最敏感的问题之一。A.
公共服务设施规划布局采用的方式有()。A.分散布局 B.集中布局 C.
劳动法的首要原则是()A:保障劳动者的劳动权 B:劳动关系民主化 C:物质帮
下列关于行政许可实施程序中的听证程序的表述,错误的有()。A、行政许可直接涉及申
2021年7月1日,习近平总书记在庆祝中国共产党成立100周年大会上的讲
最新回复
(
0
)