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蚯蚓生活在富含腐殖质的土壤中它的身体是由许多彼此相似的 构成的．在观察蚯蚓的过程中要经常用浸水的湿棉球轻擦蚯蚓这是因为蚯蚓的�吸要靠能 Template






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sketch 3174 John Snow Helga Fon Stein
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sketch 5063 Super Meat Boy by Alexander Volodimirovich Danilchenko
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tomski蚯蚓生活在富含腐殖质的土壤中它的身体是由许多彼此相似的 构成的．在观察蚯蚓的过程中要经常用浸水的湿棉球轻擦蚯蚓这是因为蚯蚓的�吸要靠能 coloring
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蚯蚓生活在 的土壤中通过 和 的配合使身体蠕动．——青夏教育精英家教—— 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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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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蚯蚓生活在富含腐殖质的土壤中它的身体是由许多彼此相似的 构成的．在观察蚯蚓的过程中要经常用浸水的湿棉球轻擦蚯蚓这是因为蚯蚓的吸要靠能 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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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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蚯蚓生活在土壤中以土壤中腐生的植物根茎叶为食．蚯蚓在吃食物时有没有选择性请你就这一问题设计一个实验方案进行探究．你提出的问题是 sketch template
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题目在翻开的湿润的土壤中经常会看到蠕动着的蚯蚓．这些暴露在空气中的蚯蚓又会很快钻进土壤．下面是几个与蚯蚓相关的问题请思考回答1 sketch template
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蚯蚓生活在富含有机质有机质的湿润土壤中通过刚毛刚毛和肌肉肌肉的配合使身体蠕动蠕动．蚯蚓的生活习性是昼伏夜出昼伏夜出以植物的枯叶枯叶 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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阅读并分析下列材料材料一蚯蚓适于生活在阴暗潮湿富含有机物的土壤中．蚯蚓在土壤中活动可以使土壤疏松蚯蚓的排出物还能增加土壤肥力．材料二 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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12．蚯蚓是人类的好朋友如图是在“观察蚯蚓 的实验时所观察到的部分结构请据图回答12象一个粗大的指环它的名称是环带．2此图 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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探究实验背景知识蚯蚓生活在潮湿疏松富含有机物的土壤中．它的身体由虚度体节构成体表湿润并且有许多粗糙的刚毛．蚯蚓依靠肌肉和刚毛运动．请 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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【地理专题高考地理中的土壤剖面，太阳视运动日出北半球有机质日落腐殖质 新浪新闻 sketch template
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题目蚯蚓一般营穴居生活但夏季雨后蚯蚓会爬到地面上活动原因是 A 雨后的地面凉快B 雨后的土壤中缺食物C 雨后的土壤中缺 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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12．蚯蚓的生存环境是 A．湿润富含腐殖质的土壤B．干燥紧密的土壤C．潮湿疏松富含有机物的土壤D．干燥疏松的土壤——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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蚯蚓生活在阴暗潮湿富有有机质的土壤中能从土壤中获得生活动所需营养这说明生物能 环境蚯蚓的活动过程又使得土壤空隙增多土壤肥力提高 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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在“饲养和观察蚯蚓 的实验中1你饲养蚯蚓时选用的土壤是富含腐殖质的湿润土壤富含腐殖质的湿润土壤．2观察蚯蚓的外部形态现其身体由许多 sketch template
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有机质详细了解一下 土壤 sketch template
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蚯蚓生活在湿润的土壤中它用来吸的是 A．肺B．气管C．体壁D．肺和皮肤——青夏教育精英家教—— sketch template
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8．蚯蚓能疏松土壤提高土壤肥力．请你参与“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 sketch template
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土壤与作物 sketch template
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图表示密封的玻璃容器内绿色植物 生长在潮湿的土壤和腐殖质中在适宜的温度和光照条件下瓶内生物能存活较长时间．1为保证生物的生存应将整个 sketch template
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如图为生物进化历程示意图请据图回答问题．1图中是 动物．是腔肠动物和都是生活在 中但的身体是由 细胞构成．2是蛙 sketch template
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蚯蚓生活在富含有机质有机质的湿润土壤中通过刚毛刚毛和肌肉肌肉的配合使身体蠕动蠕动．蚯蚓的生活习性是昼伏夜出昼伏夜出以植物的枯叶枯叶 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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