Cows eat grass.
Hens eat worms.
Dogs eat meat.
Which of the following are oviparous animals and which are viviparous animals?
Frog, Human being, Sparrow, Lizard, Cow, Dog, Hen, Fish, Butterfly, Cat.
In which of the following animals the embryos develop fully the mother's body and in which they develop fully in the eggs laid by mother?
Cow, Ostrich, Frog, Lizard, Deer, Cat, Snake, Tiger, Dog, Hen