NEET Solved Paper 2014 Question 90

Question: If 20 J of energy is trapped at producer level, then how much energy will be available to peacock as food in the following chain?

Plant $\rightarrow$ Mice $\rightarrow$ Snake $\rightarrow$ Peacock [AIPMT 2014]

Options:

A) 0.02 J

B) 0,002 J

C) 0.2J

D) 0.0002 J

Show Answer

Answer:

Correct Answer: A) 0.02 J

Solution:

Given the food chain: Plant → Mice → Snake → Peacock, we can calculate the energy available to the peacock step by step.

  1. Energy at the producer level (Plant): 20 J
  2. Energy at the primary consumer level (Mice): 10% of 20 J = 0.1 * 20 J = 2 J
  3. Energy at the secondary consumer level (Snake): 10% of 2 J = 0.1 * 2 J = 0.2 J
  4. Energy at the tertiary consumer level (Peacock): 10% of 0.2 J = 0.1 * 0.2 J = 0.02 J

Therefore, the energy available to the peacock as food is 0.02 J.