A. They are autotrophic
B. They are multicellular and heterotrophic
C. They have a cell wall made of cellulose
D. They are unicellular
Answer: They are multicellular and heterotrophic
Which of the following is the main characteristic of the kingdom Animalia?
Additional Information: Animals are multicellular, heterotrophic organisms that obtain nutrients by consuming other organisms.
Subjects: Biological Classification, Biology