Question

______are placed at the first stage of ecological pyramid.

• A. Secondary consumers
• B. Primary consumers
• C. Producers
• D. Top predator

Answer 1

The correct option is C

Producers

Producers are placed in the first stage of ecological pyramid. The base of the pyramid is composed of species called autotrophs, the primary producers of the ecosystem. All other organisms in the ecosystem are consumers called heterotrophs, which either directly or indirectly depend on the primary producers of food energy.