Which statement best describes a primary producer?

The correct statement describes a primary producer as an organism capable of producing its own energy through photosynthesis. Primary producers, such as plants, algae, and some bacteria, utilize sunlight to convert carbon dioxide and water into glucose and oxygen. This process not only provides energy for the primary producers themselves but also serves as the foundation of the food web by providing energy for primary consumers—organisms that eat these producers.

The essence of primary producers lies in their ability to harness solar energy, which is vital for all ecosystems. This capability distinguishes them from other organisms that depend on consuming other living beings or organic matter for energy.