Based on the observations regarding matter and energy flow in the containers, the student describes the role of the earthworm in the ecosystem created in the investigation. Which description best explains the role of the earthworm in the ecosystem?
consumers, because they eat organisms that would compete with plants for beneficial nutrients
producers, because they use energy from the Sub to produce nutrients that are needed by the plants.
decomposers, because they break down substances in the soil that provide nutrients for plants
scavengers because they can survive in soils that have very few nutrients and still remain healthy