Question
Certain species occupies more than one trophic levels in a same ecosystem. Explain with example.

Answer

→ Trophic level represents functional level not a specific species.
→ A given species can be a part of more than one tropic level within the same ecosystem at same time.
→ For an instance, sparrow, when eats seed, pea and fruits then it is a primary consumer but when it eats insects and worms, its called a secondary consumer.
→ Human also occupies many trophic levels in a certain food chain.

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