Species diversity, ecosystem diversity, genetic diversity.
1. Species Diversity: Refers to the richness of biological species such as animals, plants, and microorganisms on earth.
2. Ecosystem Diversity: Refers to the diversity of habitats, biological communities, and ecological processes within the biosphere, as well as the diversity of habitat differences and changes in ecological processes within the ecosystem.
3. Genetic diversity: refers to the sum of the various genetic information carried by living things on earth.