In an ecosystem the organism which changes light energy into stored chemical energy is the

The organism that changes light energy into stored chemical energy in an ecosystem is the producer. Producers, also known as autotrophs, are organisms that can synthesize their own organic molecules, such as glucose, from inorganic sources like water and carbon dioxide. They do this through the process of photosynthesis, which involves using light energy from the sun to convert inorganic molecules into organic molecules. Plants, algae, and some bacteria are examples of producers. They form the base of the food chain in an ecosystem, as they are the only organisms capable of producing their own energy-rich organic molecules. All other organisms in the ecosystem rely on these producers, either directly or indirectly, for their energy needs. Consumers, on the other hand, are organisms that cannot produce their own organic molecules and must obtain them from other organisms. Decomposers are organisms that break down dead organic matter and recycle nutrients back into the ecosystem. Carnivores are a type of consumer that primarily eat meat. Therefore, the organism that changes light energy into stored chemical energy in an ecosystem is the producer.