Answer:
The correct answer is option D, 90%
Explanation:
The food pyramid consists of trophic level representing the species based on their food intakes. A species at the bottom of the pyramid is a producer i.e plant and it is capable of producing food using sunlight. Now when a primary consumer consumes the plant, only 10% of the energy is passed on to it through the plant and remaining 90% goes into waste. Like wise at each trophic level only 10 %of energy of the previous trophic level is passed on.
