Matching Pairs BiodiversidadOnline version unir columnas by Fernando Moreno Sigüenza 1 The most biodiverse ecosystems are 2 Biodiversity 3 We know about more than 2 is the variety of living things on Earth. rainforest and coral reefs. millions species, but there may be many more. 1 The disapperance of a species is called 2 When a species of living things disapears from a place extinction there is loss of biodiversity.