如图为生物圈中碳循环的示意图请据图分析回答下列问题1图中食物链起始的生物是 .2图中甲乙都具有的生理作用是 .3图中�表示的 Template




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tomski如图为生物圈中碳循环的示意图请据图分析回答下列问题1图中食物链起始的生物是 .2图中甲乙都具有的生理作用是 .3图中�表示的 coloring