Given below are two statements.

Statement I : Pyramid of biomass in a grassland ecosystem shows a decrease in biomass at higher trophic levels.

Statement II : In a sea ecosystem, a small standing crop of phytoplankton supports a large standing crop of zooplankton.

In light of the above statements, choose the correct answer from the options given below.

Both statement-I and statement-II are true.

Statement I: Pyramid of biomass in a grassland ecosystem typically shows a decrease in biomass at higher trophic levels. This is because energy is lost as it moves up the food chain, with each successive trophic level having less biomass than the one below it. Therefore, Statement I is true.

Statement II: In a sea ecosystem, phytoplankton, which are primary producers, form the base of the food chain. Despite having a small standing crop (biomass), phytoplankton support a large standing crop of zooplankton through consumption. Zooplankton feed on phytoplankton and convert their biomass into their own biomass. Since zooplankton are consumed by higher trophic levels, they have a larger biomass compared to phytoplankton.