In an ecological food chain, what role is performed by autotrophic primary producers?
Answer and explanation
Correct answer: B. Synthesising organic carbohydrates from carbon dioxide and water via photosynthesis using sunlight energy
- Step 1: Autotrophs (green plants, algae, phytoplankton) capture radiant solar energy. Step 2. Through photosynthesis, they fix inorganic CO2 into glucose, forming the foundational biomass that supports all higher trophic levels. Answer: Synthesising organic carbohydrates from carbon dioxide and water via photosynthesis using sunlight energy. Why not the others: Herbivores are primary consumers, and fungi/bacteria are decomposers.
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