Which organisms can make their own food through photosynthesis?

The correct answer is producers. Producers are organisms that have the ability to make their own food through the process of photosynthesis. This process involves converting sunlight, carbon dioxide, and water into glucose and oxygen, primarily using chlorophyll found in plants. Examples of producers include green plants, algae, and certain bacteria. These organisms form the foundation of the food chain, as they provide energy and nutrients for consumers and other organisms.

In contrast, consumers are organisms that cannot produce their own food and must rely on eating other organisms, be it plants or animals. Decomposers break down dead organic matter and return nutrients to the soil, playing an essential role in ecosystems but not engaged in photosynthesis. Predators, which are a type of consumer, specifically hunt other animals for food. Thus, the key distinction lies in the ability to perform photosynthesis, which is exclusive to producers.