Biodiversity levels refer to the variety of life forms within a specific habitat or ecosystem. This includes the diversity of species, genetic variations within those species, and the variety of ecosystems themselves. High biodiversity is crucial for ecosystem resilience, allowing environments to adapt to changes and disturbances. There are three main levels of biodiversity: genetic diversity, which focuses on the differences in DNA among individuals; species diversity, which counts the number of different species in an area; and ecosystem diversity, which looks at the variety of habitats and ecological processes. Each level plays a vital role in maintaining ecological balance.