From the point of view of evolution of living organisms, which of the following set of animals is a correct sequence of evolution?

Answer: [D] Echidna, Kangaroo, Whale

The correct sequence of the evolution would be Monotremes, Marsupials and Eutheria. Since, Whale is in subclass Eutheria, it is the latest in the evolution. So the correct sequence is Echidena (Monotreme), Kangaroo (Marsupials) & Whale (Eutheria).Echidna  are the only surviving members of the Monotremata order and are the only living mammals that lay eggs.

This question is a part of GKToday's Integrated IAS General Studies Module