Concept:A pyramid of energy shows how much energy is transferred between trophic levels in an ecosystem.
Explanation:Energy enters the pyramid at the base through producers.
From one trophic level to the next, energy is lost as heat and through metabolic activities like respiration.
According to Lindeman’s 10% Law, only about
10% of the energy at one level is passed on to the next trophic level.
So, energy is maximum at the base (producers) and minimum at the apex (top consumers).
Therefore, energy continuously decreases from the base to the apex of the pyramid.
Answer:B. Energy decreases from the base to the apex of the pyramid.