Question

Which one of the following statements is not correct? 

(a) Ecosystem’s structure, species composition and functioning change seasonally between years. 

(b) Nature has spent millions of years to refine a stable ecosystem. 

(c) Ecosystem functions mainly through the input of solar energy 

(d) The relative loss of energy due to respiration decreases with higher trophic levels.

Answer 1

Correct option : (d) The relative loss of energy due to respiration decreases with higher trophic levels.

Explanation:

As we go higher in the trophic levels through the food chain, the loss of energy due to respiration as well as metabolic activities successively increase. So, there occurs the transference of only 10% of the preceding trophic level to the next higher trophic level.