草履虫的运动器官是纤毛．______．-生物

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• 如图A为植物细胞模式图，B为草履虫结构示意图．（1）A图中起支持和保护作用的是图中标号______所示结构，液泡是图中标号______所示结构．（2）B图中草履虫靠图中标号______纤毛的摆-生物
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• 下列不属于草履虫的特征是[]A．能够自由运动B．对外界刺激反应灵敏C．具有细胞壁D．以现成有机物为食-七年级生物
• 草履虫生命活动所需要的能量来自于[]A．自身光合作用B．食物中有机物分解释放的能量C．太阳光的照射D．纤毛运动产生的能量-七年级生物
• 在草履虫的下列结构中，能完成运动功能的是：[]A．纤毛B．表膜C．伸缩泡D．食物泡-七年级生物
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