Bacterial cells are prokaryotic, meaning they lack a true nucleus. Their genetic material (DNA) is not enclosed within a nuclear membrane but is instead found in the cytoplasm in a region called the nucleoid.
In contrast:
Viruses (A) are acellular and do not have cytoplasm or a true cell structure.
Algae (B) and Moss (D) are eukaryotic organisms, meaning their genetic material is enclosed within a nuclear membrane.
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