What makes using the spiders to control pests possible?⏢ 相关知识点: 试题来源: 解析 蜘蛛是害虫的天敌,能有效捕食害虫,减少化学农药的使用需求 利用蜘蛛控制害虫的可行性主要基于以下关键点: 1. **生态位特性**:蜘蛛是自然界中的顶级捕食者,其食性覆盖多种农业害虫(如飞虱、蚜虫),可直接降低害虫种群...
29. What led to the decrease of spiders' food supply? C A. Chemicals used for killing insects. B. The exunction of a lot of wildlife. C. Fast reproduction of their competitors. D. The long tradition of collecting insects.30. What step is taken/by committed persons to protect spiders?
Within the animal kingdom lies a species of spider so unique it is like no other species of spider. This spider is called the trapdoor spider. They are a type of spider that spends much of its life in a burrow underground. They are very different to traditional spiders. Instead of ...
What is a Web Crawler? An automated software called a web crawler, commonly referred to as a spider, systematically browses the World Wide Web in order to index websites for search engines. Online crawlers’ main job is to gather information from websites, such as text, images, videos, an...
For instance, a common house spider typically produces smaller, silk-woven sacs that may be found in corners or under furniture. On the other hand, a black widow's egg sac is more robust, often spherical, and has a papery texture. The female wolf spider carries her egg sac attached to ...
What is it that we want independence from, exactly? Most people would probably say that they want to be independent from imported oil. But there are reasons that we buy all that oil from elsewhere. The first reason is that we need it to keep our economy running. Yes, there is a ...
。根据文章第一段第二句“She was afraid of the dark, spiders and shadows.”(她害怕黑暗,蜘蛛和影子。)可知,Buding过去害怕黑暗、蜘蛛和影子。结合选项,A选项的意思是黑暗;B选项的意思是蜘蛛;C选项的意思是影子;D选项的意思是一位老妇人。可知本题正确答案为A。
The purple pitcher plant, Sarracenia purpurea, is a low﹍ying carnivorous plant that uses pitcher﹕haped leaves to catch arthropod prey for nutrition. Spiders make up a significant portion of these prey. To determine the tendency of specific spider taxa to be captured by the plant, we compared...
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Do Spiders belong to the Insecta class? No, spiders belong to the Arachnida class. 8 Which is more diverse, Spiders or Insects? Insects are more diverse, with millions of species compared to the thousands of spider species. 8 What's the primary diet of Spiders? Spiders are primarily carnivo...