如图甲为北极冻原生态系统中部分生物构成的食物�图乙虚线方框内表示一个生态系统箭头表示该生态系统能量流动的方�请据图回答下列问题1图 Template




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tomski如图甲为北极冻原生态系统中部分生物构成的食物�图乙虚线方框内表示一个生态系统箭头表示该生态系统能量流动的方�请据图回答下列问题1图 coloring