Which type of organism serves as a producer in an ecosystem?

In an ecosystem, producers are organisms that convert sunlight into energy through the process of photosynthesis. Green plants, as producers, have chlorophyll that captures sunlight and utilizes it to transform carbon dioxide and water into glucose and oxygen. This process not only sustains the plants themselves but also provides energy and organic matter for other organisms in the ecosystem.

Herbivores, which are primary consumers, rely on producers for food but do not produce their own energy. Carnivores are secondary or tertiary consumers that feed on herbivores or other carnivores, and they also do not have the capability to produce energy. Decomposers, while crucial for recycling nutrients in the ecosystem, break down dead organic material rather than creating it. Therefore, the pivotal role of transforming solar energy into chemical energy is exclusively held by green plants.