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如图所示茎a侧生长素在b点以下的浓度范围内下列对b侧生长素浓度范围的描述哪项较为准确 A．在oa段范围内 b．在bc段范围内 c．在bd Template






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tomski如图所示茎a侧生长素在b点以下的浓度范围内下列对b侧生长素浓度范围的描述哪项较为准确 a．在oa段范围内 b．在bc段范围内 coloring
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如右图所示如果茎a侧生长素在B点以下的浓度范围内下列对b侧生长素浓度范围的描述较为准确的是 A．在OA段范围内 B．在BC段范围内 C．在 sketch template
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如图所示如果根a侧的生长素浓度在曲线A点10 10 Mol·mL 1下列对b侧生长素浓度范围的叙述正确的是 A．在AC的范围内 sketch template
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如图若茎的a侧生长素浓度在B点以下的浓度范围内下列对b侧生长素浓度范围的描述较为准确的一项是 A．在BD范围内 B．在OA范围内 C sketch template
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如图所示若茎的a侧生长素浓度在曲线B点以下的范围内则下列对b侧生长素浓度范围的描述较为准确的一项是 A．在OA段范围内 B．在BC段范 sketch template
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如图所示若茎的a侧生长素浓度在曲线B点以下的范围内则下列对b侧生长素浓度范围的描述较为准确的一项是 A．在OA段范围内 B．在BC段范 sketch template
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如图所示如果根a侧的生长素浓度在曲线A点下列描述正确的是A在FC的范围内均能促进根细胞的生长C点则既不促进也不制Bb侧生长素浓度在 sketch template
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如图所示如果根a侧的生长素浓度在曲线A点10 10 Mol·mL 1下列对b侧生长素浓度范围的叙述正确的是 A．在AC的范围内 sketch template
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如图所示如果根a侧的生长素浓度在曲线A点为10 10mol．L 1下列对b 侧生长素浓度范围的描述最合适的是 Ab 侧对应的 sketch template
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如下图表示生长素浓度对植物根芽和茎生长的影响此图给你的信息是 A生长素对三种器官的作用具有两重性低浓度促进生长高浓度制生长 sketch template
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如图所示如果茎a侧生长素在B点以下的浓度范围内下列对b侧生长素浓度范围的描述哪项较为准确A．在OA段范围内 B．在BC段范围内 C．在BD sketch template
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如图所示如果根a侧的生长素浓度在曲线A点10 10 Mol·mL 1下列对b侧生长素浓度范围的叙述正确的是 A．在AC的范围内能促进 sketch template
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如右图所示如果茎的a侧的生长素浓度对应的作用效率表现为曲线OB段一列对茎的b侧的生长素浓度所对应作用效率的描述中较为准确的是 A 在 sketch template
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如图所示如果茎a侧生长素在B点以下的浓度范围内下列对b侧生长素浓度范围的描述哪项较为准确 A在OA段范围内 B在BC段范围内 C在 sketch template
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研究人把生理状况相同的水稻的根用不同强度的单侧光 高途 sketch template
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15．下图表示生长素浓度对植物根芽茎生长的影响此图给你的信息是 A．生长素对三种器官的作用具有两重性低浓度促进生长高浓度例如10 sketch template
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如图表示生长素对植物根茎和芽生长的影响曲线．1促进芽生长的最适宜浓度是 生长素的这一浓度对根生长的效应是 ．2曲线AB段表示 sketch template
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如图若茎的a侧生长素浓度在B点以下的浓度范围内下列对b侧生长素浓度范围的描述较为准确的一项是 A． 在BD范围内 B． 在OA范围 sketch template
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如图所示如果茎的a侧的生长素浓度对应的作用效率表现为曲线OB段下列对茎的b侧的生长素浓度所对应作用效率的描述中较为准确的是 A sketch template
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植物生活动受多种激素的调控．图甲表示生长素浓度对根和茎生长的影响图乙表示种子在解除眠过程中几种激素的变化情况．1从图甲中可以看出生长 sketch template
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如图表示生长素对某种植物根茎和芽生长情况的影响曲线．看图回答下列问题1促进芽生长的最适宜浓度是 生长素的这一浓度对根生长的效应是 sketch template
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题目如图表示植物生长单位长度所需时间与生长素浓度的关系下列叙述正确的是A在单侧光的作用下若胚芽鞘光侧的生长素浓度为a则背光侧为 sketch template
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如下图所示如果茎a侧生长素在B点以下的浓度范围内下列对b侧生长素浓度范围的描述哪项较为准确 A．在OA段范围内 B．在BC段范围内 C．在 sketch template
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下图表示生长素浓度对植物根芽和茎生长的影响从此图中不能得到的结论是 A．生长素对三种器官的作用都具有两重性即低浓度促进生长高浓度 sketch template
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植物生长素浓度和茎组织细胞生长速率的关系如图所示．如果对侧芽施用同样浓度范围的植物生长素其生长关系由哪条曲线来表示 AⅠBⅡC sketch template
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幼苗在生长过程中表现出应激性下面是目前对下图所示现象产生原因的解释其中正确的是 茎对生长素的敏感性比根弱 茎对生长素的敏感性比根强 sketch template
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右图表示植物不同器官对生长素的反应请据图回答 1促进茎生长的生长素最适浓度是 Mol/L此浓度对根的生长的效应是 2A点所对应 sketch template
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为了探究生长素和乙烯对植物生长的影响及两种激素的相互作用学家用某种植物进行了一系列实验结果如下图所示相关推测不正确的是 A．浓度髙 sketch template
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如图所示相同的甲乙丙三株幼苗均被切去茎尖切面的不同位置上分别放上含有适宜浓度生长素的琼脂小块．一段时间后幼苗生长状况是 A甲 sketch template
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如图表示植物不同器官对生长素的反应．请据图回答1A点所对应的生长素浓度对茎生长的效应是 对芽生长的效应是 ．2B点所对应的生长素 sketch template
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如图为植物生长过程中的两种现象下列分析正确的是 A．图甲中生长素在背光侧多细胞伸长快所以出现光生长现象B．图甲中植物根水平生长以 sketch template
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如图表示植物的不同器官对生长素的反应据图回答1图中促进植物根茎生长的最适浓度依次为10 10mol．L 110 4mol．L 1 sketch template
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如图有关植物激素的叙述正确的是 A图中生长素同时存在对茎切段细胞分裂有促进作用B图中生长素对不同植物的影响有差异较高浓度的生长素 sketch template
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题目在可以调节温度的温室里栽培番茄研究昼夜温差对番茄茎生长的影响图1是根据日温均为26℃夜温在不同温度下测定的数据绘制的曲线图图2 sketch template
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赤霉素具有促进植物茎秆伸长的作用其作用机理如图所示遗传学研究表明赤霉素对矮生玉米的作用效果明显而对正常株高玉米的作用效果不明显下列 sketch template
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如图所示曲线表示生长素的浓度与根生长的关系右侧表示根的地生长如a侧的生长素浓度在曲线F A范围内下列对b侧的生长素浓度范围的描述正确 sketch template