AP BIOLOGY

Detailed explanation-1: -Food Chains In a grassland ecosystem, a grasshopper might eat grass, a producer. The grasshopper might get eaten by a rat, which in turn is consumed by a snake. Finally, a hawk-an apex predator-swoops down and snatches up the snake.

Detailed explanation-2: -Grass (primary producer) is consumed by grasshopper (primary consumer). Later, the grasshopper is consumed by a frog which is eventually consumed by a snake. In this way, the energy flows as food from producers to animals present at different levels.

Detailed explanation-3: -In the food chain given below, grasshopper occupies the trophic level. Grass