Question

Which one of the following is not a mammalian character ?

• A. Homodont dentition
• B. Presence of milk producing glands
• C. Two pairs of limbs
• D. Skin is unique in possesing hair
• E. Presence of external ears called pinnae

Answer 1

The correct option is A Homodont dentition

All the mammals have different types of teeth (heterodont) for e.g., incisors, canines, premolars and molars. Other characters which define mammals are mammary glands, skin with hairs, external and middle ears, two pairs of limbs and placenta. So, the correct answer is option A.