Biology · PYQ NEET UG 2024

In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is \( 100x \text{ (kcal m}^{-2}\text{) yr}^{-1} \), what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?

1. \( 10x \text{ (kcal m}^{-2}\text{) yr}^{-1} \)
2. \( \frac{100x}{3x} \text{ (kcal m}^{-2}\text{) yr}^{-1} \)
3. \( \frac{x}{10} \text{ (kcal m}^{-2}\text{) yr}^{-1} \)
4. \( x \text{ (kcal m}^{-2}\text{) yr}^{-1} \)