NEET Botany (general) MCQ Question
If a terrestrial ecosystem has a standing crop biomass of 4000 kg/ha at the producer level, and assuming a 10% energy transfer efficiency to each successive trophic level, what would be the expected biomass at the secondary consumer level?
40 kg/ha
400 kg/ha
4 kg/ha
4000 kg/ha
Correct Answer
Detailed Explanation
The standing crop biomass decreases by approximately 90% at each trophic level due to energy transfer inefficiency. From producers to secondary consumers, biomass is reduced by 90% twice, resulting in 40 kg/ha.
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