part b\na disturbance to the producers reduced the energy at this trophic level to 8,000 kcal but had no…

part b\na disturbance to the producers reduced the energy at this trophic level to 8,000 kcal but had no effect on the efficiency at which energy is transferred between trophic levels. based on this information, the approximate amount of energy transferred to tertiary consumers would be\na 8,000 kcal.\nb 800 kcal.\nc 80 kcal.\nd 8 kcal.

part b\na disturbance to the producers reduced the energy at this trophic level to 8,000 kcal but had no effect on the efficiency at which energy is transferred between trophic levels. based on this information, the approximate amount of energy transferred to tertiary consumers would be\na 8,000 kcal.\nb 800 kcal.\nc 80 kcal.\nd 8 kcal.

Answer

Explanation:

Step1: Recall energy - transfer rule

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

Step2: Calculate energy at primary consumers

If producers have 8000 kcal, primary consumers get 10% of 8000 kcal, which is $8000\times0.1 = 800$ kcal.

Step3: Calculate energy at secondary consumers

Secondary consumers get 10% of the energy of primary consumers. So, $800\times0.1=80$ kcal.

Step4: Calculate energy at tertiary consumers

Tertiary consumers get 10% of the energy of secondary consumers. So, $80\times0.1 = 8$ kcal.

Answer:

D. 8 kcal