A food web shows how energy and nutrients travel among plants and animals. Producers are green plants. They make their own food using water, carbon dioxide, and energy from the sun. Animals that eat plants are called herbivores. Carnivores eat meat.
Many animals eat a wide range of food, including grasses, fruits, fresh meat, and carrion.
These animals are called omnivores. Decomposers include insects, bacteria, and fungi. They break down dead plants and animals, turning them back into water, carbon dioxide, and minerals. These materials are released into the soil or air and used by green plants to make food. Animals also must have water to live.