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关于生态系统的物质循环的叙述不正确的是 A．所指的物质是组成生物体的chonps等一些基本化学元素 b．所说的生态系统指地球 Template






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sketch 135 TYGER Style
sketch 3367 Ichigo by Szymon Broszczak
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sketch 2976 A girl watches the moon

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tomski关于生态系统的物质循环的叙述不正确的是 a．所指的物质是组成生物体的chonps等一些基本化学元素 b．所说的生态系统指地球 coloring
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读“雨林生态系统的养分循环示意图 完成24 25题 圆圈大小反映养分储量的多 箭头粗细表示物流量的大小 24．上图中abcd sketch template
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4．生态系统中氮循环和碳循环及其相互关系的简图如下 1图中过程称为 2在完成图中过程的生物中根瘤菌是非常有名的它活跃在 sketch template
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下图表示生态系统某物质的循环图其中甲 丁构成生物群落 表示物质循环的过程下列有关叙述中不正确的是 A若“x 代表CO2则过程 sketch template
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如图为生态系统信息传递模式图有关叙述正确的是 信息传递是双的能量流动和物质循环也是双的生态系统的功能主要是能量流动和物质循环 sketch template
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