天气预报 > 自然 > 最低等的单细胞动物是
最低等的单细胞动物是
更新时间: 2021-06-01 18:35:19  

1、最低等的单细胞动物是草履虫。

2、草履虫是一种身体很小,圆筒形的原生动物,它由一个细胞构成,是单细胞原生动物,雌雄同体。最常见的是尾草履虫。体长只有180至280微米。它和变形虫的寿命最短,以小时来计算,寿命时间为一昼夜左右。因为它身体形状从平面角度看上去像一只倒放的草鞋底而叫做草履虫,观察它需要用显微镜才能观察仔细。

关键词: 最低 单细胞 动物

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