A. Multicellular and autotrophic
B. Prokaryotic
C. Unicellular or simple multicellular
D. Heterotrophic only
Answer: Unicellular or simple multicellular
Which of the following is a defining characteristic of the kingdom Protista?
Additional Information: Most organisms in the kingdom Protista are unicellular, with some simple multicellular organisms.
Subjects: Biological Classification, Biology