What are 3 producers at Yellowstone national park?

Three producers at Yellowstone National Park include:

1. Plants: Yellowstone is home to a diverse array of plant species, from towering coniferous forests to lush meadows and sagebrush steppe. These plants produce oxygen, food, and shelter for a variety of organisms.

2. Algae and Cyanobacteria: Found in the park's many rivers, lakes, and hot springs, algae and cyanobacteria are primary producers that use sunlight to convert carbon dioxide into organic matter. They provide food for aquatic organisms and are essential to the park's food web.

3. Bacteria: Bacteria play a vital role in the decomposition of organic matter, recycling nutrients back into the ecosystem. They are found in all habitats within the park, from the soil and water to the thermal features.