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单词 在食物链中
例句 DEFINITIVE EXAMPLES 权威例句〔consumer〕A heterotrophic organism that ingests other organisms or organic matter in a food chain.取食者:一种在食物链中摄食其它有机体或部分有机物质的异养有机体美国传统〔food chain〕Insects are fairly low down (on) the food chain.在食物链中,昆虫是相当低的一级生物。牛津高阶〔primary consumer〕An animal that eats grass and other green plants in a food chain; an herbivore.食草动物:在食物链中吃草和其他绿色植物的动物;食草动物美国传统〔secondary consumer〕An animal that feeds on smaller plant-eating animals in a food chain.次级消费者:在食物链中以更小的食草动物为食的动物美国传统〔tertiary consumer〕An animal that feeds on secondary consumers in a food chain.第三代取食者:在食物链中以第二代取食者为食的动物美国传统〔trophic level〕A group of organisms that occupy the same position in a food chain.营养层次,营养级:在食物链中居于同一地位的一群生物美国传统
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