Question

Occurrence of similar endemic species in South America and Australia is due to

• A. Extinction of species
• B. Continental separation
• C. Retrogressive evolution
• D. All of the above

Answer 1

The correct option is B Continental separation

Occurrence of similar endemic species in South America and Australia are due to geographical isolation (continental separation). Animals occupy all diverse habitats. The distribution, continuous or discontinuous of a species or a group of organisms depends on many factors like evolutionary, climatic, physical or biological barriers etc. When the continents of Australia and South America got separated, the organisms also got separated, and evolved independently in the respective continents.