生态系统除了有生物外，还有非生物部分．______．-生物

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• 绿色植物是生物圈中的______．-生物
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• —Hello, Mike. Long time no see. Where are you? —Oh, not only my parent but also I _______ Wuhan for
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• 下列哪项不属于生态系统的碳循环的环节（）A．大气中二氧化碳通过绿色植物的光合作用进入到植物体内B．动物通过直接或间接地摄食植物使碳进入到动物体内C．所有生物的呼吸作用和工-生物
• 下列属于消费者与生产者之间的关系的是（）A．青蛙捕食蝗虫B．兔子啃吃松蘑C．山羊吃树叶D．人类吃黑木耳-生物
• — Do you know the city of Ningbo well? — Of course I do. I've here for nearly 3 years. [ ]A. co
• My _______ name is Guo Ping. We are in the same school.A．friendB．friendsC．friend’sD．friendly-九年级英语
• --Listen! Someone is knocking at the door. Who _____it be?---It_____be Tom. He phoned to visit me th
• 绿色植物在生态系统中属于______，蜜蜂在生态系统中属于______，营腐生生活的细菌和真菌在生态系统中属于______．-生物
• — ___ he a cook? —Yes, he is. [ ]A. Is B. Are C. Does -七年级英语
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• 维持生态平衡必不可少的生物是（）A．生产者和草食动物B．生产者和分解者C．肉食动物和分解者D．草食动物和肉食动物-生物
• – Must I get up early tomorrow morning? – No, _________.A．you mustn’tB．I don’t think you have toC．yo
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• 一般地说，在食物链中随着营养级的递增，生物个体的数量将依次（）A．递增B．不变C．递减D．稍增加-生物
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• —Must I go through the radiation (辐射) check when I come back from Japan at the airport these days?—Y
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• 利用所学的知识回答下列问题：（1）大雨过后，蚯蚓纷纷爬出地面的原因是______．（2）人的头癣、灰指甲、脚癣等都是由______真菌引起的．（3）为了保护南极的生态环境，科学工作者不仅-生物
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• 实验室里有一个封闭状态生态球，已经维持了一年多，各类生物一直生活良好，后来仅仅移动了一下位置，生物就全死了，它原来是放在（）A．恒温培养箱里B．窗台上C．药品橱柜D．冰箱冷-生物
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• 在生态系统中，从总体上看各组成成分储存的能量，排序正确的是（）A．植物的数量＞草食动物＞肉食动物B．草食动物＞肉食动物＞植物的数量C．肉食动物＞草食动物＞植物的数量D．肉食动物＞-生物
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• 如图中A表示的是一种鹰在一个群落中的情况，那么B代表的可能是（）A．是该种鹰的天敌种群B．是与鹰有互利共生关系的一个种群C．群落中生产者数量变化的情况D．是被鹰捕食的一个种群-生物
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• We can make a fire ______ the room warm so that we can chat for a while.A．to keepB．keepingC．keepD．ke