Which of these is an example of viviparous animals?

(a) Frog

(b) Hen

(c) Dog

(d) Fish

The correct answer is (c) Dog

Viviparous animals are those that give birth to live young ones instead of laying eggs. In these animals, the embryo develops inside the mother’s body, where it receives nutrition directly from the mother until birth.

Dogs are a classic example of viviparous animals. The puppies develop inside the mother’s uterus and are born fully formed.

Why Not the Other Options?

• Frog: Oviparous (lays eggs in water).
• Hen: Oviparous (lays eggs with hard shells).
• Fish: Most fishes are oviparous and lay eggs in water.

Thus, dog represents viviparity among the given options.