Question

What amount of energy is available to the lion in the following food chain, if plants have 10000J of energy available from the sun?
Plants $\to$ Deer $\to$ Lion

• A. 1000J
• B. 100J
• C. 10J
• D. 1J

Answer 1

Answer: (B)

100J

• Plants can trap only 1% of the Sun's energy.
• While transferring energy to the next level, only 10% of the actual amount is transferred.
• So, plants have 10000J of energy available in them as food.
• Now, according to the 10 percent law, 10% of 10000 is 1000J of energy, which will be available for deer as flesh food. Then, the food energy available to the lion will be 10% of 1000J which is 100J.

So, the correct option is B.