Question

Pyramid of biomass for a grazing food chain represents.

• A. Gradual decrease in biomass from apex to base
• B. Gradual decrease in biomass from producers to the tertiary consumers
• C. Gradual increase of the biomass from producers to the tertiary consumers
• D. No change in biomass

Answer 1

The correct option is B Gradual decrease in biomass from producers to the tertiary consumers

The biomass of the members of the food chain present at any one time forms the pyramid of the biomass. Pyramid of biomass indicates decrease of biomass in each trophic level from base to apex. For example, the total biomass of the producers ingested by herbivores is more than the total biomass of the herbivores in an ecosystem. Likewise, the total biomass of the primary carnivores (or secondary consumer) will be less man the herbivores and so on.

So the correct option is 'gradual decrease in biomass from producers to the tertiary consumers'.