A food chain starts with
Nitrogen fixation organisms
Photosynthesizing organisms
Respiration
Decomposers
Photosynthesizing organisms
The correct option is B
Explanation of the correct option:
Food chain:
Explanation of the incorrect option:
Option A:
Option C:
Respiration is an event that transforms the energy stored in foods eaten by an organism into energy that can be used for metabolic processes that sustain the organism's life.
Option D:
Decomposers complete the cycle by returning nutrients to the soil or oceans for use by autotrophs which then initiate a whole new food chain.
Final answer: A food chain starts with photosynthesizing organisms.