Question

If the producers has 100 kcal of energy, how much energy in kcal will be available for tertiary consumers?

• A. 0.1

Answer 1

The correct option is A 0.1
As per the 10% Law of energy, only 10% of the energy gets transferred from one trophic level to the next. So, if the producers has 100 kcal of energy, the primary consumer will get $100\times \frac{10}{100}=10\mathrm{kcal}$.

Similarly, if primary consumers has 10 kcal, secondary consumer will get$10\times \frac{10}{100}=1\mathrm{kcal}$.

Similarly, if secondary consumers has 10 kcal, tertiary consumer will get$1\times \frac{10}{100}=0.1\mathrm{kcal}$..