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
75
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
Ifthedrugproveseffectiveinhumantrials,itcouldenhancetheeffectiveness
Thereisvirtuallynolimittohowonecanservecommunityinterests,froms
用于振捣密实混凝土拌合物的机械,按其作业方式可分为()。A.插入式振动器B.
A.葡萄糖激酶 B.6-磷酸果糖激酶 C.磷酸烯醇式丙酮酸羧激酶 D.丙酮
共用题干 (一)资料2011年4月,某审计组对乙公司2010年度财务收支情况进
能有效保护肝细胞的多糖是A、黄芪多糖 B、香菇多糖 C、灵芝多糖 D、昆布
( )是指对应聘人员进行鉴别选择,以作出决定录用或不录用哪些人员所支付的费用。
不属肾外伤晚期并发症的是( )。A.尿毒症 B.肾动静脉瘘 C.肾萎缩
(2018年真题)下列属于银行流动资金贷款贷前调查报告内容的有()。A.借
关于项目财务评价中的项目建设期与项目进度计划中的建设工期的关系,下列论述错误的
最新回复
(
0
)