Question

If $5$ joules of energy is available at producer level then find the energy transferred to the lion in the following food chain.
Plants $\to$ Deer $\to$ Lion

• A. $5$ joules
• B. $0.5$ joules
• C. $0.05$ joules
• D. $0.005$ joules
• E. None of these

Answer 1

The correct option is C $0.05$ joules

• According to the 10% rule when energy is passed in an ecosystem from one tropic level to the next, only 10% of the energy is passed on and the rest is wasted.
  
• 10% of (10% of 5 joules)=Energy transferred to the lion.
• So, the correct choice is '0.05 joules'.