A. To break down organic matter
B. To produce oxygen through photosynthesis
C. To absorb nutrients from decomposing matter
D. To act as predators
Answer: To produce oxygen through photosynthesis
What is the primary role of autotrophic organisms in ecosystems?
Additional Information: Autotrophic organisms, such as plants and algae, produce oxygen through the process of photosynthesis.
Subjects: Biological Classification, Biology