A) consumer
B) producer
C) decomposer
D) nitrogen fixation
Correct Answer: B
Solution :
The transfer of food energy from producers throguh a series of organisms (herbivores to carnivores to decomposers) with repeated eating and being eaten is known as a food chain. Producers utilise the radient energy of sun which is transformed to chemical energy (ATP) during photosynthesis. Thus, green plants (producers) occupy first trophic level in any food chain.
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