Answer: They may be prokaryotic is false.
Explanation:
Protists are eukaryotic organisms i.e they have membrane bound organelles and Nucleus. They are neither plants,animals or fungus. Protists have many form of nutrition and they may be aerobic or anaerobic.
Some protists photosynthesized like algae while others are heterotrophs
They may be unicellular or multicellular.
Some protists have cell walls while others don't.