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如图1是某农田生态系统请据图回答1此生态系统中非生物因素除了水空气土壤外还有 和 2根据各种生物在生态系统中所起的作用将 Template






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sketch 4555 Mario by Alexander Volodimirovich Danilchenko
sketch 4301
sketch 2018
sketch 1474
sketch 3000
sketch 4899
sketch 542 life
sketch 2723 by Sam Torres

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sketch 4724 Turtwig by Mark Robson
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sketch 4 Nirvana Smiley
sketch 4918 Mike Wazowsky by George Andres Crowther Castillo
sketch 4867 Johnny Depp Ronin Ronin
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tomski如图1是某农田生态系统请据图回答1此生态系统中非生物因素除了水空气土壤外还有 和 2根据各种生物在生态系统中所起的作用将 coloring
view template
如图1是某农田生态系统请据图回答1此生态系统中非生物因素除了水空气土壤外还有 和 2根据各种生物在生态系统中所起的作用将 sketch template
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湿地食物食物链食物 大山谷图库 sketch template
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下图是某农业生态系统的结构模式图雏鸭吃稻田里的杂草和害虫用作物养猪养鸭用稻秆培育菇生产沼气猪鸭粪沼渣肥田生产出无公害的大米与 sketch template
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如图为某农田生态系统的食物请据图分析回答1春季农通过播种育秧种植水稻水稻的生殖类型属于有性有性 生殖．2该食物中属于不 sketch template
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如图1是某农田生态系统请据图回答1此生态系统中非生物因素除了水空气土壤外还有 和 2根据各种生物在生态系统中所起的作用将 sketch template
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如图1是某农田生态系统请据图回答1此生态系统中非生物因素除了水空气土壤外还有 和 2根据各种生物在生态系统中所起的作用将 sketch template
view template
下图是某农业生态系统的结构模式图雏鸭吃稻田里的杂草和害虫用作物养猪养鸭用稻秆培育菇生产沼气猪鸭粪沼渣肥田生产出无公害的大米与 sketch template
view template
如图是农田生态系统的食物简图请据图回答1从生态系统的组成成分开看图中的猫头鹰蛇和青蛙等动物属于消费者．2图中共有4条食物链 sketch template
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11．如图是某农田生态系统中部分生物之间的相互联系示意图请据图回答以下问题1该生态系统中有5条食物链生产者是玉米和杂草．2此生态 sketch template
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8．下图是某农业生态工程的结构模式图请据图回答 1利用植物秸杆生产燃料酒精的过程中B阶段需要的菌种是 在生产酒精时除图中所示的条件 sketch template
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15．如图是一个农田生态系统食物．据图回答下列问题1植物中的能量流入到猫头鹰体内的途径有4条那么猫头鹰获得能量最多的食物链是植物→鼠 sketch template
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如图为某农田生态系统及对秸秆进行进一步利用的示意图请据图回答有关问题1流经此生态系统的总能量是 与自然生态系统相比该生态系统的优势 sketch template
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如图为窦店综合展生态工程示意图请据图回答 1这一生态工程的结构和功能有哪些特点 2蓝绿萍的代谢类型是 在生态系统中的 sketch template
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9．如图为某农田生态系统示意图请据图回答1在此农田生态系统中昆虫吃草子鸟兔都禾谷类为食食虫鸟能够捕食昆虫又可被鹰捕食鹰还可 sketch template
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题目下面图1表示某种绿色植物图中ABC表示生在植物体内的某些生理过程图2是某生态系统中碳循环和能量流动示意图请据图分析回答下列 sketch template
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下图1是某生态系统能量流动的定量分析图解IIIIII代表三个营养级能量单位为百万千焦图2是该生态系统相关内容模式图请据图回答 sketch template
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如图为某农田生态系统示意图请据图回答1请写出此农田生态系统中能量损失最多的一条食物链禾谷类→昆虫→食虫鸟→鹰2在此生态系统的组成 sketch template
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如图一表示某生态系统中的生物图二表示的是某条食物链中三种生物体内所含有机物总量的直方图．据图回答下列问题1作为一个完整的生态系统图 sketch template
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如图是一个农田生态系统食物．据图回答下列问题1此图中共有 条食物链其中最短的一条食物链是 ．2食草昆虫与植物之间的关系是 ．3 sketch template
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如图是某生态系统的部分生物示意图请据图回答1图中生产者是 该食物中共有 条食物链它们相互关联形成 ．2写出其中最长的一条食物链 sketch template
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如图是生态系统四种组成成分的关系图解请据图回答1图中甲表示生产者生产者丙代表的生物主要是分解者分解者．2图中的A过程是通过光合 sketch template
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如图是县某一农田生态系统中的部分植物和动物．请据图回答问题1进入生态系统中的能量是生产者通过 固定的 这些能量以 的方式储存在植物 sketch template
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如图是某校生物兴趣小组对农田生态系统做过调查后绘制的食物简图．请据图回答有关问题1在生态系统的组成成分中植物属于 ．2在农田 sketch template
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图是某农田生态系统中部分生物之间的相互联系示意图请据图回答1该生态系统中有5条食物链．2图中的水稻和杂草是生态系统中的生产者．3 sketch template
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如图是某种生态系统图解请据图回答1图中共有 条食物链这些食物链彼此交错形成了 写出图中最短的一条食物链 ．2该生态系统中的生产 sketch template
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如图为某农田生态系统对秸秆进一步利用的示意图请据图回答有关问题1在此生态系统的食物中共包含4条食物链．能量损耗最的一条食物链是水稻 sketch template
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如图是某农田生态系统中的食物．请据图回答下列有关问题．1图中共有 条食物链．2图中农作物属于生态系统成分中的 初级消费者是鸟昆虫 sketch template
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如图是人体消化吸循环和泌尿等系统生理活动示意图请据图回答1消化道中消化和吸收的主要部位是小肠小肠．物质a随血液循环首先到达心脏四 sketch template
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如图是某草原生态系统中的部分食物关系图．请据图回答下列问题1该图是一个简单的食物共有7条食物链．2从该生态系统的成分看草属于 sketch template
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如图是某生态系统的简单示意图请据图分析回答1图中的禾谷类水草能制造有机物是生态系统的生产者而昆虫兔鹰鱼等是生态系统的消费者 sketch template
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如图是某农田生态系统中部分生物之间的相互联系示意图请据图回答以下问题1该生态系统中有 条食物链．2请写出太阳能输入该生态系统的生理 sketch template
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如图是某生态系统食物请据图回答1该食物中物质和能量最多的生物是草．2蛇和鹰的关系是捕食和竞争．3构成一个完整的生态系统 sketch template
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如图为某人工生态系统的主要食物链示意图．请据图回答1浮游植物属于生态系统成分中的生产者．2该图中有3条食物链．3太阳鱼和双翅目 sketch template
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题目图是某生态系统食物简图请据图回答 1该生态系统中的生产者是该食物中共有条食物链．2若人们大量捕捉鸟类和青蛙则该生态系统 sketch template
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如图是某生态系统中食物的简图请据图回答问题1图中生态系统中的草属于生产者该生态系统中未体现出非生物成分和分解者．2图中的食物有 sketch template