Botany - Biodiversity and its Conservation Question with Solution | TestHub

Insects show the greatest biodiversity, followed by molluscs. There are approximately one million types of insects which account for nearly 70% of all invertebrates. Mollusca is also a very diverse group reaching approximately 70,000 species. Crustaceans are crabs, prawns, etc., present in the sea, freshwater and on land accounting for nearly 50,000 species.