NEET Botany Food Chains & Webs MCQ Question
If a grassland ecosystem captures 1000 kcal/m²/year of photosynthetically active radiation (PAR), how much energy is available for the primary consumer level assuming plants capture 5% of this PAR?
50 kcal/m²/year
5 kcal/m²/year
100 kcal/m²/year
500 kcal/m²/year
Correct Answer
Detailed Explanation
Plants capture 2-10% of PAR, and for this calculation, 5% was used. Therefore, 5% of 1000 kcal/m²/year is 50 kcal/m²/year available for the primary consumers.
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