Question

Does the number of organisms in each tropic level keep on decreasing as we move upwards in a food pyramid (eg - from producers to primary consumers)

Answer 1

Yes, the number of organisms keeps on decreasing in a food or energy pyramid as we move from lower tropic level to higher. This is because only 10% energy is transferred between each trophic level and there is less biomass to support the organisms at higher trophic level.