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将泡过的玉米种子切开在断面滴一点碘液这时的现象是a．胚变成蓝色b．胚乳变为蓝色c．子叶变成蓝色d．种皮变为蓝色——青夏教育精英家教�—— Template






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tomski将泡过的玉米种子切开在断面滴一点碘液这时的现象是a．胚变成蓝色b．胚乳变为蓝色c．子叶变成蓝色d．种皮变为蓝色——青夏教育精英家教�—— coloring
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将泡过的玉米种子切开在断面滴一点碘液这时的现象是 A．胚变成蓝色B．胚乳变为蓝色C．子叶变成蓝色D．种皮变为蓝色 题目和参考答案——青 sketch template
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将泡过的玉米种子切开在断面滴一点碘液这时的现象是 A．胚变成蓝色 B．胚乳变为蓝色 C．子叶变成蓝色 D．种皮变为蓝色——青夏教育精英家教—— sketch template
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实验名称观察种子的结构一目的要求1认识种子的结构．2学习观察种子结构的方法．浸软的菜豆种子浸软的玉米种子刀片放大镜稀碘 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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将泡过的玉米种子切开在断面滴一点碘液这时的现象是A．胚变成蓝色B．胚乳变为蓝色C．子叶变成蓝色D．种皮变为蓝色——青夏教育精英家教—— 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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取一粒浸软的玉米种子用刀片将种子从中央纵剖开．在剖面上滴一滴稀释的碘酒再用放大镜仔细观察被碘酒染成蓝色的是 A．果皮和种皮B sketch template
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取一粒浸软的玉米种子用刀片将种子从中央纵剖开．在剖面上滴一滴稀释的碘酒再用放大镜仔细观察被碘酒染成蓝色的是 A．果皮和种皮B sketch template
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如图为菜豆种子和玉米种子的结构示意图，请回答下列问题。（1）菜豆种子由 （填名称）和胚两部分构成，胚的组成包括 （填序号）。（2）玉米种子的子 sketch template
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玉米种子的胚胚乳种皮分别是由育而成的 A．受精卵受精极核珠被 B．受精极核受精卵子房壁 C．胚珠子房壁珠被 ——青夏教育 sketch template
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观察种子结构时用碘液滴在玉米粒纵面上被染成蓝色的部分是A．子叶B．种皮C．胚D．胚乳 题目和参考答案——青夏教育精英家教—— sketch template
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将玉米种子纵剖开可以看到如图所示结构1 具有保护种子内部结构的作用．2在剖面上滴一滴碘液能被染成蓝色的是图中的 ．3将来 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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如图为菜豆种子和玉米种子的结构图据图回答1图中菜豆种子中5所示结构共有 片而玉米种子5所示结构只有 片不肥厚．玉米种子中滴 sketch template
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什么是玉米三叶期？长三片叶子？还是四片？第一片叫子叶，是与种子有关，不算叶子？？ 知乎 sketch template
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据甲乙丙三图所示的玉米种子结构传粉和受精过程玉米幼苗示意图回答1乙图中参与受精作用的两个精子形成于 中当到达胚珠后 sketch template
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如图是玉米粒的纵剖面结构示意图请回答一小小种子能萌长成一棵植株其奥妙在于种子里有胚该结构是由图中3456构成．种子萌时所需 sketch template
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题目如图所示为玉米种子和菜豆种子的结构据图回答问题1菜豆种子和玉米种子结构的相同点是都有 2与玉米种子结构不同的是菜豆种子的 sketch template
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玉米玉米种子萌芽连续阶段 量例证 插画 包括有 查出 生活 玉米 背包 阶段 谷物 耕种 148821132 sketch template
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下图菜豆种子和玉米种子的结构图 1填序号胚芽 胚根 胚轴 子叶 种皮 胚乳 果皮和种皮 2菜豆种子的胚由图中 组成 sketch template
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如图是菜豆种子和玉米种子的结构请根据学过的知识回答1玉米种子和菜豆种子中最重要的结构是胚它是幼小的生体它是由124512 sketch template
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玉米种子和菜豆种子相同之处是 A．营养物质贮存在子叶里B．都有胚和种皮C．都有胚乳D．营养物质贮藏在胚乳里 题目和参考答案——青夏教育精英 sketch template
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观察菜豆种子和玉米种子的结构图回答下列问题1写出在菜豆种子剖面图中数字代表的结构名称2 4 2若用碘液处理两个剖面玉米种子中 sketch template
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玉米是雌雄同株的植物雄花着生在植株顶端的雄穗上雌花着生在茎杆中部叶腋间的雌穗上在一个育种实验中采用甜玉米甲非甜玉米乙两个品种的玉米 sketch template
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玉米种子浸泡器的制作方法 sketch template
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新型玉米种子脱粒机的原理和结构 Word文档在线阅读与下载 无忧文档 sketch template
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将浸泡后的玉米种子从中央纵刨开并在剖面上滴一滴碘液被染成蓝色的部位是 A．胚乳B．胚根C．胚芽D．子叶——青夏教育精英家教—— sketch template
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请根据菜豆种子和玉米种子的结构特点完成下表． 相同点 不同点 菜豆种子 都有种皮种皮和胚胚 子叶两两片营养物质储存在子叶子叶中 玉米种子 子 sketch template
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