Question

In which animal, there is post-anal tail as well as heterodont teeth ?

• A. Scorpion
• B. Krait
• C. Elephant
• D. Cobra

Answer 1

Answer: (C)

Elephant

Postanal tails are present in all vertebrates. Heterodont teeth (teeth differentiated into incisors, canines, molars, premolars) are only present in mammals.

Scorpion being a non-chordate lack both.

Cobra and Krait are chordates but are reptiles hence lack heterodont teeth.

Elephants classify both the conditions of being mammals as well as chordates.

So the correct answer is 'Elephant'.