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藻类及其主要特征

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2022-05-26 02:44
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正确答案
藻类是低等植物,分布广,绝大多数生活于水中;个体大小相差悬殊,小球藻3-4μm,巨藻长度可达60m;具叶绿素,能进行光合作用的自养型生物;没有真正的根、茎、叶的分化,又称叶状体植物;繁殖器官简单,以单细胞的孢子或合子进行繁殖,无胚,又叫孢子植物(sporeplant)
总之,藻类是无胚而具叶绿素的自养叶状体孢子植物。

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标签: 大学试题 理学
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