Ecology and biodiversity are closely linked, with the study of ecology providing insight into the interrelationships between species and the environment. Biodiversity is the variety of life on Earth, including the genetic diversity of species, the variety of habitats and ecosystems, and the variety of evolutionary processes that shape them. Biodiversity plays an important role in maintaining Earth's ecosystems, as different species interact to form healthy and balanced environments. Ecological studies help to understand how species interact and how these interactions affect the environment. In turn, this knowledge can be used to help protect and conserve species and their habitats, ensuring the preservation of biodiversity.