Question
“In a food-chain, a trophic level represents a functional level, not a species.” Explain.
✓
Answer
Position of a species in any trophic level is determined by the function performed by that mode of nutrition of species in a particular food chain/A given species may occupy more than one trophic level in the same ecosystem (in different food chains) at the given time, If the function of the mode of nutrition of species changes its position shall change in the trophic levels, same species can be at primary consumer level in one food chain and at secondary consumer level in another food chain in the same ecosystem at the given time.
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