Primary producers generally form the smallest trophic level of a pyramid of energy true or false

False.

Explanation:

Primary producers generally form the largest tropic level of a pyramid. They are occupying major portion of the pyramid. They are mainly grasses, microscopic photosynthetic organism such as phytoplankton and also includes plants and algae.

Primary function of the producer is transfer energy from one organism to another organism. They create food from inorganic matters present in the ecosystem. They convert sunlight, water, and carbon dioxide into carbohydrates.

Consumer consumes the food generated by producers because they are organisms they can not create their own food.