An ecosystem consists of all living organisms in a particular area along with the abiotic components they interact with. It contains biotic factors like producers, consumers, and decomposers which include plants, herbivores, carnivores, and bacteria. Abiotic factors that organisms depend on include physiographic elements like slope and altitude, edaphic soil properties, and climate conditions such as sunlight, temperature, air, and water. Together, the interdependent biotic and abiotic components work to maintain a balanced natural system.