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
51
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
[originaltext]W:Goodmorning,class.TodayIthoughtwewouldtalkaboutsomet
[originaltext]W:Excuseme?M:Yes,ma’am,canIhelpyou?W:Couldyoutellme
设稳压泵的消火栓给水系统图是()。A. B. C. D.
豆类含多不饱和脂肪酸达85%,其中哪种脂肪酸最丰富A.亚油酸 B.油酸 C.
用钢尺测量某结构层厚度为50mm,已知该钢尺的最大允许误差为0.5mm,则该结构
男,3岁,发热1天,呕吐2次,腹泻15次,初为水样便,继而黏液脓血便,量少,每次
股权投资基金的分配,通常采用按照单一项目的收益分配方式和按照基金整体的收益分配方
中国证监会采取证券市场禁入措施前,当事人的权利不包括()。A.陈述 B.
白喉杆菌的主要毒力因子是A.杀白细胞毒素B.肠毒素C.溶血素D.外毒素E.蛋白酶
某施工企业瞒报生产安全事故,建设行政主管部门应依法对其处以( )万元的罚款。A.
最新回复
(
0
)