A. Autotrophic
B. Heterotrophic
C. Parasitic
D. Symbiotic
Answer: Heterotrophic
A. Autotrophic
B. Heterotrophic
C. Parasitic
D. Symbiotic
Answer: Heterotrophic
Additional Information: Heterotrophic organisms depend on external sources for nutrition.
Subjects: Biological Classification, Biology