are the single-celled organisms that lack membrane-bound nucleus.

Prokaryotes

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Eukaryotes

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Fungi

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Solution

The correct option is A Prokaryotes
 Prokaryotes are single-celled organisms that lack a well defined nucleus. Single celled organisms like bacteria and archaea are prokaryotic in nature.

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Similar questions

Which kingdom lacks a well-defined nucleus and membrane-bound cell organelles?

____ are characterised by their lack of well-defined nucleus and membrane bound organelles.

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