Final answer:
In the food chain, the smallest biomass is found at the grasshopper level.
Step-by-step explanation:
In the food chain "grass grasshopper- bird hawk," the smallest biomass (total living mass) would be found at the grasshopper level. Biomass decreases as you move up the food chain because energy is lost as heat and potential energy is used up for growth, metabolic processes, and movement. The producer in the food chain, which in this case is grass, has the largest biomass as it directly converts sunlight into energy through photosynthesis. As you move up the food chain, each successive level has a smaller biomass as less energy is transferred and retained.
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