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4．为探究种子萌�与水分的关系某同学设计的对照实验方案如下表所示．你认为设计不妥的一项是 种子数量光照温度水分空气30粒有光30℃适量 Template






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sketch 3572 Hate mondays by Malyi Link
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sketch 5133 Jiraiya by Saiful Farizam
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tomski4．为探究种子萌�与水分的关系某同学设计的对照实验方案如下表所示．你认为设计不妥的一项是 种子数量光照温度水分空气30粒有光30℃适量 coloring
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种子萌的过程 ——青夏教育精英家教—— sketch template
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某中学生物学小组为了“探究种子萌需要水分和氧气 选用3粒菜豆种子设计了下图所示的实验该实验中存在的问题是 A．没有设置变量B．没有 sketch template
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下表为某同学在探究“种子萌的环境条件 时的部分操作他所探究的条件是罐头瓶实验材料处理环境浸水的棉花 干燥的玉米种子拧紧瓶盖室温干燥的 sketch template
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题目下图是李明同学所做的“探究种子萌的条件 的实验图据图回答下列小题1将A装置置于温暖的环境中B装置置于寒冷的环境中其中 sketch template
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探究种子萌的环境条件的实验如图所示是探究种子萌的环境条件的实验装置．据图回答问题．1本实验共有3组对照实验．2种子萌需要的环境 sketch template
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下面是小刚探究“种子萌的环境条件 的实验装置请分析回答1小刚将种子与设为对照目的是探究种子萌是否需要一定的水分将种子与设 sketch template
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1．如图是探究“种子萌的环境条件 的实验装置每个罐头瓶中均放有相同的干燥种子10粒并提供相应的环境条件请据图分析并回答下列问题1 sketch template
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小明同学要探究“种子的萌需要水分 ．在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同．不同的条件是 A．甲用20粒种子 sketch template
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如图是菜豆种子萌成幼苗的各阶段示意图下列哪项能正确表示菜豆种子在萌成幼苗过程中体内有机物含量的变化情况 A．B．C．D．——青夏教育 sketch template
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图甲是探究种子萌的实验装置图乙为种子结构及植株图示．请分析回答以下问题1某同学利用图甲装置探究菜豆种子萌的条件．其环境温度为25 sketch template
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12．下面为探究种子萌所需要的外界条件的实验装置．请仔细阅读并回答下列问题1探究温度度对种子萌的影响应该选用2和5两个编号的种子对照 sketch template
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为了探究水分对种子萌的影响张伟设计了一 个实验如下表 1你认为他设计的这个探究实验是否能够确定结果只是由这个变量引起的如果不能 sketch template
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图为某同学设计的探究种子萌的实验．在AB两个烧杯中分别放入等量的清水在两根相同的玻璃棒上各捆上3完整的大豆种子并分别编号．将甲烧杯放 sketch template
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如图是探究种子萌所需环境条件的实验装置示意图据图回答下列问题1这六粒种子中 号种子可以萌21号和2号种子对比说明种子萌 sketch template
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为探究植物体内水分的运输速率与叶面积大小的关系某同学设计了如下实验取两组龄相同生长状况相似的同种植物枝条分别留下6片和3片叶．把 sketch template
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Ⅰ．某兴趣小组设计了“探究种子萌的环境条件 实验种子萌的内部条件已具备实验设计如图1．1实验中B号种子能萌原因是它具备适宜的 sketch template
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下表为探究“种子萌的环境条件 的实验设计及结果记录每个培养皿中都放入25粒豌豆种子．装 置甲乙丙丁场 所暗中暗中日光下日光下温 度 sketch template
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某校生物兴趣小组探究“种子萌所需要的外界条件 时做了如下实验1提出问题水对种子的萌是否有影响2作出假设 3设计实验 sketch template
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4．为探究种子萌与水分的关系某同学设计的对照实验方案如下表所示．你认为设计不妥的一项是 种子数量光照温度水分空气30粒有光30℃适量 sketch template
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图为某同学设计的探究种子萌的实验．在AB两个烧杯中分别放入等量的清水在两根相同的玻璃棒上各捆上3完整的大豆种子并分别编号．将甲烧杯放 sketch template
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种子萌最先突破种皮生长出来的结构是 A．胚轴B．子叶C．胚芽D．胚根——青夏教育精英家教—— sketch template
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下图是种子萌过程中水分吸收变化规律曲线据图完成下列填空 种子萌过程中的水分吸收可分为三个阶段第I阶段是吸胀期种子迅速吸水第Ⅱ阶段 sketch template
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小明同学要探究“种子的萌需要水分 ．在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同．不同的条件是 A．甲用20粒种子 sketch template
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实验分析某同学在探究种子萌的外界条件时设计了如下实验取40粒同样的绿豆种子分成4等份在四个同样大小的洁净的空罐头瓶上分别贴上写有1 sketch template
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12．下面为探究种子萌所需要的外界条件的实验装置．请仔细阅读并回答下列问题1探究温度度对种子萌的影响应该选用2和5两个编号的种子对照 sketch template
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某校生物兴趣小组为了探究影响种子萌的因素利用玉米种子进行实验将若干粒玉米种子随机分成四等份分别放在底部铺有棉花的四个广口瓶中在不同 sketch template
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题目在“探究水分对种子萌的影响 时AB两组同学分别进行了实验设计主要实验设计如下图所示1本实验的变量是 2你认为AB sketch template
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为探究绿豆种子出土率与种植深度的关系小国做了如下实验将大小相似饱满程度相同的120粒同一品种的绿豆种子平均分成4组在相同砂土中按不同的 sketch template
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在“探究水对种子萌的影响 时AB两组同学分别进行了实验设计主要实验设计如图所示1本实验的变量是 ．2你认为AB两组同学的 sketch template
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图为某同学设计的探究种子萌的实验．在AB两个烧杯中分别放入等量的清水在两根相同的玻璃棒上各捆上3完整的大豆种子并分别编号．将甲烧杯放 sketch template
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下面是兴趣小组的同学设计的两个实验装置都是用来观察植物的蒸腾作用的请你根据示意图分析解决问题1甲乙两个实验装置中 更合理学．理由 sketch template
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下列有关图1 图4的相关陈述中错误的是A种子萌时胚根最先突破种皮育成图1中B图2中蝗虫体表的外骨骼可防止体内水分的蒸C由图3 sketch template
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12．下面为探究种子萌所需要的外界条件的实验装置．请仔细阅读并回答下列问题1探究温度度对种子萌的影响应该选用2和5两个编号的种子对照 sketch template
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题目下图1是苏祥同学设计的模拟探究“酸雨对生物的影响 的实验示意图在AB两个培养皿中铺上2 3层潮湿的纱布在其中各放入50粒已浸泡过 sketch template
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如图为某同学设计的探究种子萌的外界条件的实验．在AB两个烧杯中分别放入等量的清水在两根相同的玻璃棒上各捆上3颗同种的种子并分别编号 sketch template