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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