A) energy
B) mass
C) number
D) size
Correct Answer: A
Solution :
Pyramid of energy is never inverted because in each ecosystem producers are green plants, which prepare their own food in the process of photosynthesis and thus, trap maximum solar energy. In herbivores, only 10% of energy of plants transfer and rest 90% is itself used by the plants. Further, primary carnivores take only 10% of energy from herbivores, ie, 1% of plants. In this way, energy percentage becomes reduced in next higher trophic levels. This 10% flow of energy from one trophic level to the next is called 10 percent law of Lindemann.
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