百度试题 结果1 题目在食物链的底端/顶端 at the bottom / top of food chain 相关知识点: 试题来源: 解析 B 反馈 收藏
您好，at the bottom of the school food chain 通常指的是（学校食物链的底层），也就是职业中的最底层。学校的职位就像食物链，每一层管理下一层，下一层管理下下一层的含义。一所学校的最顶层通常为校长（在国外，可能是校务会董事），然后是副校长，再来是政教主任，年级主任，学科主任，班主任...
At the Top of the Food Chain: But the Bottom of the LinePordon, Judith
Plankton is at the bottom of the marinefood chain. 浮游生物处于海洋食物链的最底层. 《简明英汉词典》 This poses a threat to thefood chainand consequently to human health. 这对食物链是一种威胁,并且会进而影响人类的健康. 期刊摘选 I didn't fight my way to the top of thefood chainto be a...
Whattheyfoundwas that thechangesinbiologicaleventsweregreatertoward the bottomofthefoodchainthantheywereatthetop. 他们发现,与较高营养级的生物相比,生物事件的变化更多地发生在处于较低营养级的生物体中。 article.yeeyan.org 6. And that'sthedifferencebetween aPCBand,say,somethingnaturallikeanomega-3,somethin...
The bottom-line financial impact of supply chain management has been of continuing interest. Building on the operations strategy literature, Fisher's (1997... SM Wagner,GR Pan,F Erhun - 《Journal of Operations Management》 被引量: 111发表: 2012年 Positive and Negative Aspects of Financial Econ...
Here I extend the linear chain analysis to a more general functional relationship which allows independent variation of prey dependence and intra-level interference. I find that different combinations of prey dependence and interference lead to large or small cascading effects. Generally, large top-...
The bottom of the trophic pyramid is made up of producers who manufacture their own food through photosynthesis or chemosynthesis. What role do humans play in a food chain? Humans are thought to be “the king” of the food chain because they eat various sorts of plants and animals but are...
the abundance or biomass of lower trophic levels depends on effects from consumers at higher trophic levels. A trophic cascade is a type of top-down interaction that describes the indirect effects of predators. In a trophic cascade, predators induce effects that cascade down the food chain and ...
Top to bottom: Specific UV absorbances at 254 nm (SUVA254), water colour indicated by absorbance at 420 nm (A420), and dissolved organic carbon (DOC) concentrations filtered through 0.2 µm. All marked with means ± 1 s.d. Full size image Methylmercury in the ambient lake water ...