Question

Assume there are 10,000 Joules (J) of energy available in trophic level II in the figure. According to the conventional model of energy flow in ecosystems, which of the following statements correctly describes the flow of energy in the system?

A. Trophic level IV has approximately 100 J of energy.

B. Trophic level I has approximately 1,000 J of energy.

C. Trophic level II has approximately 10 J of energy.

D. Trophic level II generates a maximum of 10,000 J of energy

Answer 1

The correct statement is B. Trophic level I has approximately 1,000 J of energy.

Step-by-step explanation:

The conventional model of energy flow in ecosystems states that only about 10% of the energy at one trophic level is available to the next level. So, if there are 10,000 Joules (J) of energy available in trophic level II, trophic level III would have approximately 1,000 J of energy (10% of 10,000 J). Therefore, the correct statement is B. Trophic level I has approximately 1,000 J of energy.