Natural ecosystems are complex networks of living organisms and their physical environment, interacting as a system. They include various biomes such as forests, deserts, and wetlands, each supporting unique communities of plants and animals. These ecosystems play a crucial role in maintaining biodiversity and providing essential services like clean air and water. In a natural ecosystem, every species, from the smallest microorganisms to the largest predators, has a role to play. The balance within these systems is vital for their health and resilience, allowing them to adapt to changes and disturbances. Protecting natural ecosystems is essential for sustaining life on Earth.