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实验探究蚯蚓是常见的一种动物．请根据所学知识回答下列问题并完成后面的探究活动．1蚯蚓生活在富含腐殖质的湿润的土壤中通过肌肉肌肉和刚毛刚毛 Template






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tomski实验探究蚯蚓是常见的一种动物．请根据所学知识回答下列问题并完成后面的探究活动．1蚯蚓生活在富含腐殖质的湿润的土壤中通过肌肉肌肉和刚毛刚毛 coloring
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题目为探究环境因素对蚯蚓生活的影响有同学设计了实验取两个大小一样的广口瓶贴上甲乙标签在甲瓶中放入湿润的肥沃土壤在乙瓶中放入经 sketch template
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如图是某兴趣小组的同学设计的探究蚯蚓习性的实验装置图你认为他们探究的问题是 A蚯蚓对光线有怎样的反应B湿度对蚯蚓生活有怎样的影响C sketch template
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蚯蚓是常见的一种动物．请根据所学知识回答下列问题并完成后面的探究活动．1蚯蚓生活在湿润的土壤中以土壤中植物的枯叶朽根和其他有机物为食 sketch template
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题目蚯蚓是土壤中的一种生物它的食性很特别以畜禽粪便和有机废物垃圾为食．下面是某生物对于蚯蚓的研究请你分析回答相关问题一认识蚯蚓 sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的广口瓶贴上甲乙标签在甲瓶中放人湿润的肥沃土壤在乙瓶中放入经烘干 sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的瓶子贴上甲乙标签．在甲瓶中放入湿润的肥沃土壤在乙瓶中放入经烘干的 sketch template
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取两个罐头瓶贴上甲乙标签．在甲瓶中放入湿润的肥沃土壤在乙瓶中放入干的肥沃土壤．然后在甲乙两瓶中同时放入5条蚯蚓观察两瓶中蚯蚓的生活 sketch template
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下图是最常见的环节动物之一 蚯蚓下列有关叙述错误的是 A．B端是蚯蚓的前端B．是蚯蚓的环带C．蚯蚓的身体由许多相似的组成D．蚯蚓靠 sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面实验取两个大小一样的广口瓶贴上甲乙标签在甲瓶中放入湿润的肥沃土壤在乙瓶中放入经烘干的 sketch template
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题目为探究蚯蚓的运动某同学设计了一个实验取一块纸板用浸透的毛笔在纸板中央画一条水道另取一块玻璃板同样用浸透的毛笔在板的中央画一条 sketch template
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如图是蚯蚓横切面示意图根据图回答问题1蚯蚓的整个身体好像是由内外两条管子套在一起似的外面的管子是 里面的管子是 ．2抚 sketch template
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根据观察蚯蚓的实验回答问题1在实验中们是以图中的结构 位置来判断蚯蚓的前后端由图可断定A是蚯蚓的 端2用手指轻蚯蚓背面 sketch template
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根据观察蚯蚓的实验完成下列问题1环带位于蚯蚓身体的前端颜色较浅质地光．2蚯蚓前运动时身体后端固定身体前端变细前伸长 sketch template
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实验探究蚯蚓是常见的一种动物．请根据所学知识回答下列问题并完成后面的探究活动．1蚯蚓生活在富含腐殖质的湿润的土壤中通过肌肉肌肉和刚毛刚毛 sketch template
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八年级生物上册第五单元第一章第2节《线形动物和环节动物》 同桌100学习 sketch template
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在“饲养和观察蚯蚓 的实验过程中1观察蚯蚓的外部形态会现它的身体由许多彼此相似的环形体节构成．其中有一个宽度最大颜色较浅而又光的 sketch template
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取一条活的蚯蚓放在玻璃板上观察完成下列观察记录．1观察蚯蚓的体形它的身体由许多彼此相似的环状 构成．分别数数蚯蚓从头部和尾部到环节的体 sketch template
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题目蚯蚓是人类的好朋友图是“观察蚯蚓 的实验时观察到的部分结构据图回答1蚯蚓的身体由许多 构成这使它的躯体运动灵活．2 sketch template
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蚯蚓的身体是由许多彼此相似的环状体节构成的它属于以下哪一类 A．节肢动物B．鱼类C．环节动物D．软体动物 题目和参考答案——青夏教育精英 sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取两个大小一样的广口瓶贴上甲乙标签在甲瓶中放入湿润的肥沃土壤在乙瓶中放人经烘干 sketch template
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蚯蚓是人类的好朋友们应该好好保护它．下面是蚯蚓的外形图请据图回答．1结构3是蚯蚓的 由此可断定2是蚯蚓的 端．．2蚯蚓的身体由 sketch template
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为探究环境因素对蚯蚓生活的影响有同学设计了下面的实验取3个大小一样的广口瓶分别贴上甲乙丙标签．在甲丙瓶中放入湿润的肥沃土壤在乙瓶 sketch template
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题目下面是观察蚯蚓的外部形态及运动的实验请结合实验步骤和图示回答下列问题1取一条活蚯蚓可以现其身体是由许多环形的 构成这使它 sketch template
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小明在土壤中挖到一条蚯蚓无法判断蚯蚓的前端你诉小明蚯蚓的前端是 原因是在这端有 ．接着他用手触蚯蚓身体腹部感觉 ．用放大镜观察 sketch template
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为了探究环境因素对蚯蚓生活的影响有同学设计了如图实验取3个大小一样的广口瓶分别贴上甲乙丙标签．在甲丙瓶中放入湿润的肥沃土壤在乙瓶中放 sketch template
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18．根据所学知识回答1在观察蚯蚓的实验中要保持蚯蚓体表的湿润其原因是靠湿润的体壁吸．2与家兔相比蚯蚓不能快速运动的原因是 sketch template
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如图是某兴趣小组的同学设计的探究蚯蚓习性的实验装置图你认为他们探究的问题是． A．蚯蚓对光线有怎样的反应B．湿度对蚯蚓生活有怎样的影响C sketch template
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实验探究蚯蚓是常见的一种动物．请根据所学知识回答下列问题并完成后面的探究活动．1蚯蚓生活在富含腐殖质的湿润的土壤中通过肌肉肌肉和刚毛刚毛 sketch template
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小明在做完观察蚯蚓的实验后忘记将一只蚯蚓放回土中而是将它留在干燥的环境中不久现蚯蚓死去了造成这只蚯蚓死亡的重要原因是 A．有 sketch template
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19．根据“观察蚯蚓 实验回答下列问题1观察蚯蚓的外部形态取一条活蚯蚓观察它的体形可以现蚯蚓的身体圆筒形由许多相似的环形体节 sketch template
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儿童青年心理健康的核心 良好的情绪和适度的 表示儿童青年的身心处于积极的健康状态——青夏教育精英家教—— sketch template
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2．植物的蒸腾量植物靠根系从土壤中吸收来的水分绝大多数要通过蒸腾作用散失到大气中去例如一株玉米从出苗到结实的一生中大约要从土壤中吸收 sketch template
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右图为训练蚯蚓走“T 字形迷宫的实验进行实验时在迷宫的一臂安上电极另一臂是潮湿的暗室暗室里有食物在实验过程中当蚯蚓爬到安有电极的一 sketch template
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“土壤湿度对蚯蚓生活的影响 的探究实验如图制作一个箱子以箱子内横轴中线为界一边放潮湿的土壤另一边放相同高度干燥的土壤然后放进20条 sketch template
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某校生物兴趣小组的同学用如图1所示的装置进行探究活动装置中玻璃板与无色透明钟罩之间用凡士林密封透明钟罩内放一只盛有某种液体的小烧杯．请根据 sketch template