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燕麦胚芽鞘经下图一所示处理一段时间后取其甲乙两块琼脂置于已切去尖端的胚芽鞘ab上a给予单侧光照处理如图二所示则弯曲程度 A．a Template






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sketch 4948 Snow White by George Lucaz
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tomski燕麦胚芽鞘经下图一所示处理一段时间后取其甲乙两块琼脂置于已切去尖端的胚芽鞘ab上a给予单侧光照处理如图二所示则弯曲程度 a．a coloring
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燕麦胚芽鞘经下图一所示处理一段时间后取其甲乙两块琼脂置于已切去尖端的胚芽鞘AB上A给予单侧光照处理如图二所示则弯曲程度 A．A sketch template
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题目燕麦胚芽鞘经如图一所示处理一段时间后取其甲乙两块琼脂置于已切去尖端的胚芽鞘AB的相同位置上A以单侧光照处理如图二所示．则 sketch template
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14．对燕麦胚芽鞘尖端进行下图所示的处理 将尖端套上不透光的锡箔小帽 将尖端下部用锡箔遮住 在尖端纵插入锡箔 在尖端 sketch template
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下图中甲表示对燕麦胚芽鞘所做的处理乙表示将处理后的琼脂块分别放置在去除尖端的胚芽鞘上的三种处理方式一段时间后 的生长情况依次是 sketch template
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下图中甲表示对燕麦胚芽鞘所做的处理乙表示将处理后的琼脂块分别放置在去除尖端的胚芽鞘上的三种处理方式一段时间后 的生长情况依次是 sketch template
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31．燕麦胚芽鞘的处理如下图甲所示一段时间后取其甲乙两块琼脂置于已切去尖端的胚芽鞘AB上如下图乙所示A以单侧光照处理则胚芽鞘的 sketch template
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7．用燕麦胚芽鞘及幼苗进行如下图所示实验一段时间后会引起弯曲现象的是 A． B． C． ——青夏教育精英家教—— sketch template
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燕麦胚芽鞘经下图一所示处理一段时间后取其甲乙两块琼脂置于已切去尖端的胚芽鞘AB上A给予单侧光照处理如图二所示则弯曲程度 A．A sketch template
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下图燕麦光性实验主要说明 A．尖端对光反应引起胚芽鞘光弯曲 B．尖端胚芽鞘背光一侧运输生长素多 C．尖端产生物质为吲哚乙酸 D sketch template
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题目对燕麦胚芽鞘做如下图所示处理放在暗盒里在胚芽鞘尖端的下部用锡箔遮住在尖端横插入母片在尖端横插入琼脂片切去胚芽 sketch template
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5．下图是对燕麦胚芽鞘所做的处理一段时间后XYZ的生长情况依次是 A．左弯曲右弯曲右弯曲 B．右弯曲右弯曲左 sketch template
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仔细观察下列四个图图一是燕麦胚芽鞘的光性实验图二是水平放置于地面的玉米幼苗根与茎的生长情况图三是已出现顶端优势的植株图四是生长素浓度 sketch template
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生长素的现过程 1达尔文的植物幼苗胚芽鞘的光性实验 实验一如图甲所示用小纸盒罩住幼苗在小纸盒的一侧挖一小孔用光照射培养一 sketch template
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玉米胚的纵切示意图玉米胚的纵切图玉米胚芽鞘 大山谷图库 sketch template
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下图表示用母片插入燕麦胚芽鞘的尖端部分从不同方照光培养一段时间后胚芽鞘的生长情况是甲图 乙图 丙图 停止生长 直立生长 sketch template
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为探究单侧光是使胚芽鞘尖端的生长素转移了，还是将生长素分解了，某研究性课题小组设计了下图所示实验图1中的琼脂块一段时间后放置到图2去掉尖端的 sketch template
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题目下图是对燕麦胚芽鞘所做的处理一段时间后接着进行所示的实验则中燕麦的生长情况依次是 A B侧弯曲 sketch template
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如下图所示abc为对胚芽鞘做不同处理的实验d为一植株被纸盒罩住纸盒的一侧开口有单侧光照下列对实验结果的描述正确的是 A sketch template
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学家做过如下试验把含有生长素的琼脂块放在一段燕麦胚芽鞘的形态学上端把另一块不含生长素的琼脂块作为接受块放在下端另一试验是把一段燕麦胚芽 sketch template
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下图一中所示的生物间关系AB代表两种生物C代表生物的生活条件箭头表示营养流动的方图二在坐标系中表示两种生物之间的关系下列 sketch template
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燕麦胚芽鞘经下图一所示处理一段时间后取其甲乙两块琼脂置于已切去尖端的胚芽鞘AB上A给予单侧光照处理如图二所示则弯曲程度 A．A sketch template
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下列有关种群数量变化的叙述中正确的是 A． 增长型种群的种群数量在期内一定能不断增加 B． 在环境条件没有剧烈变化时种群数量增长 sketch template
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玉米胚的纵切示意图玉米胚的纵切图玉米胚芽鞘 大山谷图库 sketch template
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燕麦胚芽鞘经如下图一所示处理一段时间后取其甲乙两块琼脂置于已切去尖端的胚芽鞘AB上A以单侧光照处理如图二所示．则弯曲程度 A sketch template
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题目燕麦胚芽鞘经如图一所示处理一段时间后取其甲乙两块琼脂置于已切去尖端的胚芽鞘AB的相同位置上A以单侧光照处理如图二所示．则 sketch template
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1图二表示玉米种子的纵剖面该剖面是刀片沿着图一所示的 线削开的。 2在图二所示的玉米种子的剖面上滴一滴碘酒变成蓝色的部分是 sketch template
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如下图所示abc为对胚芽鞘做不同处理的实验d为一植株被纸盒罩住纸盒的一侧开口有单侧光照下列对实验结果的描述正确的是 A sketch template
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用燕麦胚芽鞘进行如下图所示的实验经过一段时间后会引起弯曲现象的是 A． B． C． D．——青夏教育精英 sketch template
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1图二表示玉米种子的纵剖面该剖面是刀片沿着图一所示的 线削开的。 2在图二所示的玉米种子的剖面上滴一滴碘酒变成蓝色的部分是 sketch template
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图一所示的是根尖的结构，图二和图三所示的分别是枝芽的结构及其育而成的枝条，请根据图回答下列问题： 1植物幼根的生长是通过图一中 C sketch template
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10．如图所示将燕麦胚芽鞘尖端切除后放置于一空白琼脂块上一段时间将已切去尖端的胚芽鞘下部正中插入不透水的玻璃片后再将琼脂块放置于去尖端的 sketch template
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观察下图所示丁香叶芽结构的纵切和丁香的一段枝条，回答下列问题。 1请写出图中的结构名称和将来育成什么。 是 ，将来育成 。 是 sketch template
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燕麦胚芽鞘经下图所示处理经过几天后其变化是 A．左弯曲 B．右弯曲 C．直立生长 D．停止生长——青夏教育精英家教—— sketch template
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下图一中所示的生物间关系AB代表两种生物C代表生物的生活条件箭头表示营养流动的方图二在坐标系中表示两种生物之间的关系下列 sketch template
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下图所示为用母片插入燕麦胚芽鞘尖端部分从不同方照光培养一段时间后胚芽鞘的生长情况是 A 甲右弯乙不弯曲丙不弯曲 B sketch template