In a pyramid of numbers representing an ecosystem of a large freshwater pond, the number of primary consumers is

The correct answer is more than the secondary consumers.

Explanation:

• A pyramid of numbers is a graphical representation that shows the number of organisms at each trophic level in an ecosystem. It provides insight into the population size of different organisms within a given ecosystem.
• In an ecosystem, organisms are categorized into different trophic levels: producers, primary consumers, secondary consumers, and tertiary consumers.
• Producers, such as plants, form the base of the pyramid. They are followed by primary consumers (herbivores), secondary consumers (carnivores that eat herbivores), and tertiary consumers (carnivores that eat other carnivores).
•  In a typical pyramid of numbers, the number of primary consumers is greater than the number of secondary consumers. This is because energy is lost at each trophic level, requiring a larger base of primary consumers to support the secondary consumers.

Pyramid of Biomass in Aquatic ecosystem:

• ​The pyramid of biomass in the ocean is always inverted.
• This is because the organic matter of the 1st trophic level in an ocean ecosystem phytoplankton is less than that of its succeeding trophic levels.
• Similarly, the biomass of the next trophic level is less than its succeeding level, and so forth.
• Phytoplankton are very minute organisms (2µ to 200 µm) and does not contribute much to the biomass as compared to the next stage i.e. zooplankton (consumer).
• The pyramid of biomass depends on the longevity of the members as the organisms with longer life will have larger biomass.​