A. They are multicellular and autotrophic
B. They are unicellular or simple multicellular organisms
C. They are prokaryotic
D. They have no cell wall
Answer: They are unicellular or simple multicellular organisms
What is a characteristic of organisms in the kingdom Protista?
Additional Information: Organisms in the kingdom Protista are mostly unicellular, with some simple multicellular forms.
Subjects: Biological Classification, Biology