Zoology - Organisms and Populations Question with Solution | TestHub

The tropical Amazonian rain forest in South America has the greatest diversity.

Tropical habitats are relatively more constant and less seasonal. Such environments tend to promote niche specialization that gives more diversity. Also, such environments remain undisturbed for millions of years leading to evolution and species diversification.

Amazon rain forests are considered as 'lungs of the planet' as they contribute 20% of the total oxygen in the Earth's atmosphere.