Question

period: 14. the diagram shows the movement of energy through organisms. if the autotrophs produce 1,500 j of energy, outline how much energy would be seen for each of the proceeding trophic levels?

Explanation:

Step1: Recall energy - transfer rule

Only about 10% of the energy is transferred from one trophic level to the next.

Step2: Calculate energy at level C (primary - consumers)

The autotrophs are the producers. If they produce 1500 J of energy, the primary - consumers (level C) receive 10% of this energy. So, the energy at level C is $1500\times0.1 = 150$ J.

Step3: Calculate energy at level B (secondary - consumers)

The secondary - consumers (level B) receive 10% of the energy from the primary - consumers. So, the energy at level B is $150\times0.1=15$ J.

Step4: Calculate energy at level A (tertiary - consumers)

The tertiary - consumers (level A) receive 10% of the energy from the secondary - consumers. So, the energy at level A is $15\times0.1 = 1.5$ J.

Answer:

Energy at level C: 150 J
Energy at level B: 15 J
Energy at level A: 1.5 J