The role of decomposers in the ecosystem are: (i) They help in cleaning the environment. (ii) They decompose biodegradable substances into useful substances. (iii) Through decomposing dead and decaying matter, they release nutrients into the soil and thereby make the soil fertile. (iv) They maintain the nutrient pool by returning back the nutrients into the pool.
Will the impact of removing all the organisms in a trophic level be different for different trophic levels? can the organisms of any trophic level be removed without causing any damage to the ecosystem?