Biodiversity is a term that is used to refer to the crowd of living organisms that occupy the variety of habitats on the earth and have adapted to suit their lives according to the environment they inhabit. The biodiversity can be studied at the following three levels: GENETIC BIODIVERSITY: This refers to the genetic variation within the same species, for example, the colour of fur in cats. SPECIES BIODIVERSITY: This refers to the variety of species occupying a particular area. A species can be defined as the group of organisms that are capable of interbreeding.ECOSYSTEM BIODIVERSITY: This refers to the biodiversity present in the different ecosystem, for example, tropics have a higher degree of biological diversity as compared to temperate or polar regions.