Which diagram can be used to show the population of producers primary consumers an secondary consumers in a system?

A food web diagram can be used to illustrate the relationships between producers, primary consumers, and secondary consumers in an ecosystem. It visually represents how energy flows through the system, with arrows indicating the direction of energy transfer. Additionally, a pyramid of biomass or energy can also effectively display the relative populations and energy at each trophic level, highlighting the decreasing biomass from producers to secondary consumers.