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但是最近的研究发现一种昆虫,这种属于甲壳虫类的昆虫可以为自己开辟一条避开这种植物防御系统的通路,方法是切断主要的向叶子传递毒液的叶脉。 But a recent study has found one insect, a beetle that can chew its way past the plant's defense system by cutting the main vein that delivers the poison to the leaves. | ||
小型淡水甲壳动物,长有盾牌状甲壳。 Small freshwater crustaceans with a shield-shaped carapace. | ||
蜘蛛类的相对丰盛度远远高于捕食性昆虫类。 The abundance of spiders was far higher than that of predatory insects. | ||
十几年后,这种甲壳纲动物将长到拖拉机轮胎大小。 After a dozen years, the crustacean will grow to the size of a tractor tire. | ||
节肢动物可分成四类,即:多足类、蛛形类、甲壳类和昆虫类。 They can be divided into four smaller groups. These are the myriapods, the arachnids, the crustaceans and the insects. | ||
小龙虾和虾或龙虾一样,在科学上属于甲壳纲动物。 Crawfish, like shrimp or lobsters, belong to the scientific class Crustacea. | ||
在天敌功能团中,瓢虫类恢复能力较强,蜘蛛类与寄生性天敌类较弱。 Among the functional groups of natural enemies, ladybirds had a stronger ability of recovery, while spiders and parasitoids were weaker. | ||
届时,海水开始溶解贻贝的外壳和其他甲壳类动物,对食物链造成严重破坏。 The water will then start to dissolve the shells of mussels and other shellfish and cause major disruption to the food chain. | ||
结论甲壳胺三聚磷酸钠可以作为双氯灭痛缓释微丸的骨架材料。 P. Conclusions Chitosan tripolyphosphate sodium could be used as a complex matrix material for sustained release pellets loading DS. | ||
临时或季节浮游生物是由鱼类,甲壳类动物和其他海洋动物的幼体组成的。 Temporary or meroplankton are made up of the larvae of fish, crustaceans and other marine animals. | ||