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Which statement is not true about prokaryotic cells? They are always single-celled organisms, and they never contain mitochondria. They have a circular loop of DNA instead of multiple linear DNA molecules. They lack a nucleus, but they do have ribosomes. They may have flagella, but they never have cilia. They all have a rigid cell wall instead of a plasma membrane.

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Answer:

They lack a nucleus, but they do have ribosomes.

Explanation:

Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.
they lack on nucleus

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