Prokaryotes didn't gradually morph into eukaryotes through a bunch of gradual evolutionary steps.

原核生物不是通过一系列渐进的进化步骤逐渐变成真核生物的。

Prokaryotes were starved for P, so their population likely stalled for hundreds of millions of years.

原核生物缺乏磷，所以它们的数量可能停滞了数亿年。

Up until this point, all cells were prokaryotes: simple bags of stuff without any division of labor going on inside.

在这之前，所有的细胞都是原核生物：里面只有物质，没有任何分工。

Roughly one billion years later, prokaryotes evolved into more complicated eukaryotes.

大约 10 亿年后，原核生物进化成更复杂的真核生物。

Archaea and bacteria are prokaryotes, and because they do not have nuclei in their DNA, it is located in their cytoplasm.

古生菌和细菌都是原核生物，因为它们的 DNA 中没有细胞核，细胞核位于细胞质中。

About 3.7 billion years ago, single-celled  microbes, called prokaryotes, first evolved on our planet.

大约 37 亿年前，称为原核生物的单细胞微生物首先在我们的星球上进化。