BI-1855
Energy losses in food chains
Biology · Secondary 4 · Hard · Energy losses in food chains
In a food chain, grass → grasshoppers → frogs → snakes, the pesticide concentration in grass is 0.02 ppm. Assuming biomagnification occurs and each trophic level has a higher concentration than the one before, which set of values is most likely? (ppm = parts per million)
- grass 0.02, grasshoppers 0.01, frogs 0.03, snakes 0.02
- grass 0.02, grasshoppers 0.15, frogs 0.80, snakes 3.20
- grass 0.02, grasshoppers 0.02, frogs 0.02, snakes 0.02
- grass 0.02, grasshoppers 0.10, frogs 0.05, snakes 0.01
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