Q.
I. $10\ kcal/m^{2}/yr$ II. $100\ kcal/m^{2}/yr$ III. $1000\ kcal/m^{2}/yr$ IV. $100000\ kcal/m^{2}/yr$ Refer to the above diagram of energy pyramid. The ecological efficiency at primary consumer level, in comparison to that at secondary consumer level, is
Explanation
The formula of ecological efficiency is $= \frac{Energy\ in\ biomass\ production\ at\ a\ trophic\ level}{\begin{array}{r}
Energy\ in\ biomass\ prodcution\ at \\
prevense\ trophic\ level
\end{array}} \times 100$ We know that plant (producers) convent the photo energy into chemical energy and according to Lindman rule of energy transfer only 1% of energy will be transferred from one trophic level to other trophic level So according to the formula of ecological efficiency primary consumer will have less ecological efficiency then secondary consumers because energy in biomass be production at first tropical level (i.e., producers level) will more while ecological efficiency of secondary consumer will be high then primary consumer because in secondary consumer the energy produced in biomass at previous tropical level will be less then producer level
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.