What is an ecosystem?

Habitats and ecosystems are communities of organisms - both plants and animals. An example is a grassland. Plants grow in the fertile soil and these attract insects who pollinate them. The insects attract predators, like birds, and these in turn attract larger predators. All of these are adapted to life on the grassland. In order to protect various species and encourage biodiversity, it is important for people and governments to protect habitats and ecosystems.