I keep getting “Trophic levels” questions wrong in Ecosystem & Ecology. What's the trap?
forgetting decomposers, which recycle nutrients back to producers.
The usual trap: forgetting decomposers, which recycle nutrients back to producers. How to avoid it: decomposers close the loop by returning nutrients to the soil. Go back to the definition — the feeding positions in a food chain: producers, primary consumers, secondary consumers, and decomposers.
Key point
Trophic levels
Common mistake
forgetting decomposers, which recycle nutrients back to producers.
Memory tip
decomposers close the loop by returning nutrients to the soil.
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