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Question
How much of the net primary productivity of a terrestrial ecosystem is eaten and digested by herbivores?
How much of the net primary productivity of a terrestrial ecosystem is eaten and digested by herbivores?
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Solution
The correct option is A 10%
Energy flow in the ecosystem follows the ten percent law(put forth by Lindemann in 1942).From the level of primary producers onwards, only 10% of energy is stored at the higher trophic level and 90% is lost (as heat or in respiration etc.,). This energy transfer forms the basis of life.Producers20J→Herbivores2J→Carnivores0.2JSo, the correct answer is 'Option B'.
Energy flow in the ecosystem follows the ten percent law(put forth by Lindemann in 1942).
From the level of primary producers onwards, only 10% of energy is stored at the higher trophic level and 90% is lost (as heat or in respiration etc.,). This energy transfer forms the basis of life.
Producers20J→Herbivores2J→Carnivores0.2J
So, the correct answer is 'Option B'.
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