Q. The most unique mammalian characteristic is the presence of mammary glands. Which of the following mammals is oviparous?
A) Macropus
B) Ornithorhynchus
C) Pteropus
D) Delphinus
Explanation
Ornithorhynchus (platypus) is an egg-laying mammal. Macropus (kangaroo), Pteropus (flying fox) and Delphinus (dolphin) are viviparous.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.