Here's why:
* Producers are organisms that make their own food through photosynthesis. They use sunlight, carbon dioxide, and water to create energy-rich molecules (like sugars) that fuel their growth and reproduction.
* Consumers obtain energy by eating other organisms (either plants or animals).
* Decomposers break down dead organisms and waste products, releasing nutrients back into the environment.
Since the organism in question is not a consumer or decomposer, it must be making its own food, making it a producer. Examples of single-celled producers include algae and some types of bacteria.
