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在生物学界,人们曾反复考虑这样一个问题:在绿色植物的一生中,春发芽,夏长叶,秋结果,看起来逍遥自在、与世无争,但实际上却无时无刻不遭受着害虫的攻击,时刻面临灭顶之灾。生物学家做过详实的调查研究:一只雌性害虫,每胎可产卵几百粒,甚至上千粒,一生能生育十几代,甚至几十代,呈几何级数增殖,即使树木花草叶片再多,一年之内也可几度被害虫吃光。那么,植物何以能代代相传,繁衍至今呢?原来,草木并非束手就擒的无能之辈,拥有种种常人难以察觉的生存本领。新生的嫩芽、幼叶、幼果是害虫不可多得的美餐,但有些
In the field of biology, people have repeatedly considered such a question: in the life of a green plant, spring sprouts, summer leaves, autumn results, look at ease, and the world without the fight, but in fact they have been subject to pest attacks , Always face drowsiness. Biologists have done a detailed investigation: a female pest, each child can spawn a few hundred, or even a thousand, life can have more than ten generations, or even dozens of generations, showed a geometric progression, even trees and flowers More leaves, within a year can also be pests eat several times. So, why plants can be handed down from generation to generation, multiply so far? It turned out that vegetation is not a trapped incompetent generation, with all kinds of ordinary people can not be aware of survival skills. The newborn buds, young leaves, young fruit is a rare pest delicious food, but some