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鱼是怎样呼吸的
更新时间: 2021-04-06 18:33:15  

1、鱼主要靠鱼鳃呼吸,当水流经过鱼鳃的时候,鳃丝内的血管可以和水完成气体交换。除了鱼鳃外,非洲的肺鱼可以用鱼鳔进行呼吸,让它在离水后可以存活一段时间。

2、而弹涂鱼则可以用皮肤以及口腔黏膜呼吸,但在晒干前要重回水中。泥鳅则可以在水体氧气不足的时候,游到水面靠肠道呼吸。

关键词: 怎样 呼吸

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