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.
- Energy at the producer level (Plant): 20 J
- Energy at the primary consumer level (Mice): 10% of 20 J = 0.1 * 20 J = 2 J
- Energy at the secondary consumer level (Snake): 10% of 2 J = 0.1 * 2 J = 0.2 J
- 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.