What role do representatives of different groups of living organisms play in the ecosystem? plants, animals, mushrooms

Different groups of living organisms in ecological systems are very closely interconnected and cannot exist without each other. Plants take water and minerals from the soil, and form nutrients in the process of photosynthesis. Animals feed on plants, while limiting the number of plants. In addition, plants provide shelter for animals. Mushrooms, together with bacteria, transform dead organisms into humus and thus supply plants with minerals, and they themselves serve as food for animals.