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61. The plant gives out chemicals from the leaves that are being eaten. This is like crying, or a way of saying "I'm being attacked!" When another plant gets the chemicals, it starts to give out its own, different chemicals. Some of these chemicals drive insects away. 62. Plants also...
根据第三段关键句"Iwent out to the garden and was upset to see that many of the lettuce leaves and carrots had be en half eaten by bugs. T here were hundreds o fbugs all over them!""我到花园里去,看到许多 莴苣叶和胡萝卜被虫子吃了一半,心里很不安。 他 们身上到处都是虫子!"可知,...
By using a chemical, they signal other insects to fly in and attack the attackers. Study of maize leaves being eaten by caterpillars; Release of volatile terpenoids; The three terpenoids produced in large amounts.DayStephenNew Scientist
While increased plant diversity alters traits related to resource acquisition, it remains unclear whether it reduces defence allocation, whether this reduction differs between roots and leaves, or varies among species. To answer these questions, we assessed the effect of plant species richness, plant ...
" she said to the plant, she began to look at the little book that came with the plant.She began to look at the little book that came with the plant. It showed pictures of flies and spiders being eaten by the plant. April learned that ...
或者 All th e leaves were eaten up (by the insects). 或者 All the heaves were missing. 4) She felt/was upset/unhappy and began to cr y. 5) We/I should never put off what we have t o do today till tomorrow. 或者 We/I must lear n to deal with the things while they are ...
Inside the seed is plant embryo,1.and covered by a seed coat.The way of dispersing seeds:Air: Some seeds are 2.and have hairs or wings which can help them3. in the air.Water: Seeds can float on the water and disperse by riding on 4.Animal: Seeds have 5., which are eaten by ...
It has been known for some time that plants use chemicals to communicate with each other.This happens when a plant gets attacked by insects.The plant gives out chemicals from the leaves that are being eaten.This is like a warning,or a call for help: "I'm being attac...
But they use many strategies to avoid being eaten. Frogs and Toads of the World Insectivorous plants display some of the most unusual adaptations of leaves to specialized functions. Chapter 4: Basic design I On the coast of North Carolina, the Green Swamp region is the country's finest ...