Protists are eukaryotes, which by definition means they possess a well-defined nucleus (enveloped by a nuclear membrane) and membrane-bound organelles (e.g., mitochondria, chloroplasts, Golgi bodies).

Statement is correct: They have a nucleus and cellular organelles.

Statement is correct: Many protists have cilia and flagella for movement.

Statement is incorrect because it states they have no nucleus, which would make them prokaryotes (Monera), not protists.

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