In a typical food pyramid, energy is transferred from one trophic level to the next with a significant amount being lost, usually around 90%, due to metabolic processes, heat, and other factors. This means that only about 10% of the energy is available to the next level.
- Producers (Grass): 100,000 kJ
- Primary consumers (Mice) would receive approximately 10% of the energy from producers:
\[ 100,000 , \text{kJ} \times 0.10 = 10,000 , \text{kJ} \] - Secondary consumers (Snakes) would receive approximately 10% of the energy from primary consumers (Mice):
\[ 10,000 , \text{kJ} \times 0.10 = 1,000 , \text{kJ} \]
Thus, the energy available to the secondary consumers (Snakes) is 1,000 kJ.
The correct response is: 1,000 kJ.