What is the primary role of autotrophic organisms in an ecosystem?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. Producing organic matter from inorganic substances.
The primary role of autotrophic organisms in an ecosystem is producing organic matter from inorganic substances. Also known as producers, they form the foundation of nearly all food chains. Using energy from sunlight (photosynthesis) or chemical reactions (chemosynthesis), they convert simple inorganic materials like water and carbon dioxide into complex, energy-rich organic compounds. This process makes energy available for all other organisms, including herbivores and carnivores.