简单的群体包含的细胞数较少,细胞间没有形态与机能的分化,每个细胞均能行无性生殖及有性生殖,例如盘藻(Gonium),它由4—16个细胞组成,个体呈盘状分布;实球虫(Pandorina),群体呈球形,实心,由16个细胞组成;空球虫(Eudorina),由16—...
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It was difficult to distinguish oogonium from spermatogonium according to the shape and size of gonium under light microscope.
在光镜下难以根据性原细胞的形态和大小区分卵原细胞和精原细胞。
We cannot be certain that Gonium, pandonina, Eudonna, and Pleodorina represent stages in the evolution of multicellular Volvox from unicellular chlamydomonas.
我们不能肯定盘藻、实球藻、空球藻和杂球藻代表从单细胞衣藻到多细胞因藻的各进化阶段。
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