Question

Question

The following diagram shows a typical food pyramid:

If 100,000 kJ of energy is available to the producers, how much energy is available to the secondary consumers in this food pyramid?

(1 point)
Responses

1,000 kJ
1,000 kJ

10,000 kJ
10,000 kJ

10 kJ
10 kJ

100 kJ

Answer 1

In a typical food pyramid, energy decreases as it moves up each trophic level, typically following the 10% rule. This means only about 10% of the energy at one trophic level is available to the next level.

If we start with 100,000 kJ of energy for the producers (the bottom level), the energy available at each trophic level can be calculated as follows:

1. Producers (1st trophic level): 100,000 kJ
2. Primary Consumers (2nd trophic level): 10% of 100,000 kJ = 10,000 kJ
3. Secondary Consumers (3rd trophic level): 10% of 10,000 kJ = 1,000 kJ

Thus, the energy available to the secondary consumers is 1,000 kJ.

The correct answer is: 1,000 kJ