BI-1946
Energy losses in food chains
Biology · Secondary 4 · Medium · Energy losses in food chains
In a food chain grass → grasshopper → frog → snake, why is the number of trophic levels usually limited to four or five?
- Predators cannot digest plant material
- Energy is lost at each trophic level
- Decomposers remove all nutrients
- Producers stop photosynthesis at night
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