Ecosystem Question 72
Question: Energy transfer from one trophic level to other, in a food chain is [CBSE PMT 1999; BHU 2005]
Options:
A) 1%
B) 2%
C) 10%
D) 20%
Show Answer
Answer:
Correct Answer: C
Solution:
As per 10 percent law, only 10% of the energy fixed at one trophic level is passed to next trophic level.
For example, when plants are eaten by animals only 10% of energy of the food is fixed into animal flesh; rest is lost through respiration.