It helps keep the food chain in balance. Because of the number of organisms and complexity, no single drawing can possibly show a complete rainforest food web. I will try to improve it from time to time. Above pyramid for illustration purposes only. Not drawn to scale.
Most ecosystems have primary producers , primary consumers , secondary consumers , and decomposers .
These are called trophic levels . They feed on the primary producers. Decomposers break down organic matter and recycle it back to the primary consumers. The King Vulture is a decomposer as it feeds on dead animals. Fungi and bacteria are decomposers.