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5．根据观察蚯蚓的实验回答下列问题1蚯蚓的身体是由许多相似的体节构成2距离环带较�的是蚯蚓的前端距离环带较远的是蚯蚓的后端 Template






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sketch 2989 Little Chibi by Loai Issa
sketch 135 TYGER Style
sketch 3999 Deadmau by Speeð Üp Säm
sketch 4384
sketch 2808
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sketch 5013 Pursuing Dreams by Mário JBudo
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sketch 3036 Wiz Khalifa by Malyi Link
sketch 4 Nirvana Smiley
sketch 5066 Rey Helado by Gleny Acevedo
sketch 3908 Rawr! by Timothy Palfreyman
sketch 1972 Boogaloo @Memphis
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tomski5．根据观察蚯蚓的实验回答下列问题1蚯蚓的身体是由许多相似的体节构成2距离环带较�的是蚯蚓的前端距离环带较远的是蚯蚓的后端 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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在“观察蚯蚓 的实验过程中要经常用水湿润它的皮肤下列有关解释最恰当的是 A．保证蚯蚓能正常吸 B．保证蚯蚓能很好地运动 C．便于 sketch template
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根据饲养和观察蚯蚓的实验及图示，回答下列问题：（1）区分蚯蚓的前端和后端可根据 的位置．（2）用手触蚯蚓的腹面会有 的 sketch template
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5．根据观察蚯蚓的实验回答下列问题1蚯蚓的身体是由许多相似的体节构成2距离环带较的是蚯蚓的前端距离环带较远的是蚯蚓的后端 sketch template
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5．根据观察蚯蚓的实验回答下列问题1蚯蚓的身体是由许多相似的体节构成2距离环带较的是蚯蚓的前端距离环带较远的是蚯蚓的后端 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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某生物兴趣小组进行蚯蚓的观察实验根据实验回答下列问题．1蚯蚓的身体是由许多相似的 组成2蚯蚓的前端离 较3用手触蚯蚓的体 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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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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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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根据以下动物的生理和形态特点尝试对它们进行分类并将动物的名称填入表中的空格内．——青夏教育精英家教—— sketch template
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在观察蚯蚓的实验中要注意保持蚯蚓体表的湿润主要原因是 A．有利于蚯蚓的正常运动B．有利于蚯蚓的血液循环C．有利于蚯蚓的正常吸D．有 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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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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根据饲养和观察蚯蚓的实验回答下列问题1区分蚯蚓的前端和后端可根据 的位置．2在观察蚯蚓运动的过程中要经常用水擦拭蚯蚓的体表目的 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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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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回顾“观察蚯蚓 的实验回答下列问题 如何辨认蚯蚓身体的前端 用手触蚯蚓身体感觉体表 请选择A有粘液 B干爽光 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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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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右图是蚯蚓的外形图请据图回答下列问题 1此图表示蚯蚓的 端判断的依据是 2蚯蚓在粗糙纸上运动比在玻璃板上运动速度 运动时 sketch template
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题目根据观察蚯蚓的实验回答下列问题1蚯蚓身体圆筒形前端和后端可依据上图中 的位置来区分2在观察中要经常用浸湿的棉花 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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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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回顾“观察蚯蚓 的实验回答下列问题 如何辨认蚯蚓身体的前端 用手触蚯蚓身体感觉体表 请选择A有粘液 B干爽光 sketch template
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观察如图蚯蚓的形态结构图请填空．1蚯蚓身体由许多 构成这使它的躯干运动灵活．2蚯蚓的运动要靠肌肉和 配合来完成．3夏天雨后常 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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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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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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生物分类学家根据各类生物间亲缘关系的远把各类生物安置在有分枝状的图表上简明地表示生物的进化历程和亲缘关系称为“进化 下图是生物 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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题目设置对照实验也是学探究中常用的方法某同学为了研究淀粉的消化在探究“馒头在口腔中的变化 课题时准备了馒头唾液清水碘液恒温 sketch template
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在观察蚯蚓的实验中区分蚯蚓的前端和后端可根据 的位置你通过用观察现蚯蚓的腹部有一些突起是 蚯蚓身体由许多 构成这样的动物称为 sketch template
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回顾“观察蚯蚓 的实验回答以下问题．1如图所示是蚯蚓身体的前端判断的依据是前端离环带．2实验过程中为了保持蚯蚓正常吸应保持 sketch template