The term Biodiversity was coined by W.G. Rosen in the year 1985 when he was planning the 1986 National Forum on Biological Diversity organised by National Research Council. Biodiversity can be defined as "the totality of genes, species and ecosystems of a region". Biodiversity can be classified into- Genetic Diversity-Diversity of genes within a species. - Species Diversity - Diversity within species. - Ecosystem Diversity - Diversity in ecosystems.