BI-1961
Energy losses in food chains
Biology · Secondary 4 · Medium · Energy losses in food chains
In a grassland, 30 000 kg of plant biomass supports 3 000 kg of grasshoppers and 300 kg of frogs. Which trophic level receives about 10% of the energy from the level below?
- Grasshoppers and frogs, because each has about one-tenth the biomass of its food source.
- Only plants, because they receive all their energy directly from the Sun.
- Only grasshoppers, because they are primary consumers.
- Only frogs, because they are secondary consumers.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.