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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 Template






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sketch 5084 Harry Potter by Enrique L. Manly
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sketch 2877 Elvis by Karoline Castillo
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tomski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 coloring
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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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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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某校生物兴趣小组的同学想探究环境因素对蚯蚓生活的影响设计了如下实验取两只大小相同的玻璃容器编为甲乙并贴上标签．在甲容器中放入一些湿润 sketch template
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取一条活的蚯蚓放在玻璃板上观察1蚯蚓的身体是由许多彼此相似 构成靠身体前端有一个宽大且光的节称为 ．2用手触蚯蚓身体 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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取一条活蚯蚓放在玻璃板上观察1用手指蚯蚓身体腹部感觉 用放大镜观察可以看到腹部有许多小突起这就是 2蚯蚓的运动靠 和 sketch template
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题目取一条活蚯蚓放在玻璃板上观察蚯蚓的外部形态及运动1用手触蚯蚓的腹部会有凹凸不平的感觉为更仔细地观察它应借助以下哪种 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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如图是蚯蚓的外形图请回答以下问题 1请用数字表示蚯蚓的前端和后端并说明理由 2如果把蚯蚓放在玻璃板上观察它的运动是快了还是 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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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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细菌的细胞由细胞壁细胞膜 和细胞膜等部分构成没有成形的细胞． 题目和参考答案——青夏教育精英家教—— 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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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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某同学在调查时现不同土壤中蚯蚓的分布的数量不一样于是它想设计一个探究实验它的实验方案是取两个大小一样的广口瓶贴上甲乙标签．在甲瓶 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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1 瓶中的蚯蚓蠕动逐渐减弱直至死亡2这一实验说明环境中的 因素影响蚯蚓的生活3本实验设置甲瓶的作用是 ——青夏教育精英家教—— 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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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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为了探究环境因素对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入经 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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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的玻璃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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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将蚯蚓分别放在粗糙的纸上和光的玻璃板上在纸上比在玻璃板上运动得快这主要与蚯蚓的哪一结构有关 A．肌肉B．刚毛C．粘液D．体节——青 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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4．你做“观察蚯蚓的外形实验 时为更仔细地观察它你是借助了以下哪种工具 A B C D——青夏教育精英家教—— 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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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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某学校生物兴趣小组学习了蝗虫的相关知识之后设计了如下实验取两只活蝗虫分别放进两个盛满水的试管里分别标号为AB一只把头浸没在水中另 sketch template
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20世纪50年代在婆罗洲的许多雅克人身患疟疾世界卫生组织采取了一种简单的也是直接了当的解决方法喷射DDT．蚊子死了疟疾也得到了控制．可是 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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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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取一条活的蚯蚓放在玻璃板上观察用手触蚯蚓身体腹部感觉很粗糙粗糙．用放大镜观察可以看到腹部有许多小突起刚毛刚毛．——青夏教育精英家教—— sketch template
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如图取甲乙两只活蝗虫分别放进两个盛满水的试管里把甲蝗虫的头浸在水里露出胸腹部把乙蝗虫的胸腹部浸在水里只露出头部．过一段时间后 sketch template
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为了探究环境因素对蚯蚓生活的影响某初中学校生物研究性学习小组的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 sketch template