从老鹰吃蛇，蛇吃青蛙，青蛙吃昆虫，昆虫吃植物，可以看出，老鹰体内的有机物最终来源于（）A．光B．植物C．蛇D．昆虫-生物

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• 如图是生态系统的组成示意图，请据图用图中序号回答问题：（1）生态系统中的生物部分包括生产者、消费者和分解者，请指出图中生产者是______，消费者是______和______，分解者是-生物
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• —These roses _______ lovely. —I want to send them to my teacher on Teachers' Day. [ ]A. look B.
• 在生态系统中，属于分解者的是（）①河中的鱼②树桩上的蘑菇③淡水中的草履虫④土中的细菌⑤高山上的油松⑥草丛中的蝗虫．A．③⑤B．①②C．④⑥D．②④-生物
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• Whatyou do if you won in the lottery?A．shallB．wouldC．willD．are-九年级英语
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