Question

Read the sources given and answer any four from the questions given below:

Oviparous animals lay eggs outside their body. As a result, the eggs of these animals are under continuous threat from various environmental factors. On the other hand, in viviparous animals, the development of the egg takes place inside the body of the female in the uterus. This keeps the embryo safe from the predators. They give birth to the young ones. The fertilisation can be external or internal in oviparous animals but is always internal in viviparous animals.

1. The embryos of these animals are comparatively safe from environmental factors.
   1. viviparous animals
   2. oviparous animals
   3. egg-laying animals
   4. embryonic animals
2. Viviparous animals are the ones which
   1. lay eggs without embryos
   2. lay eggs with embryos
   3. give birth to young ones
   4. keep eggs in a pouch
3. In oviparous animals the fertilisation is
   1. always external
   2. always internal
   3. can be external or internal
   4. in water
4. The development of embryo in viviparous animals occurs in the
   1. ovary
   2. uterus
   3. ureter
   4. embryo pouch
5. Which statement is true for oviparous animals?
   1. eggs are laid in the sand
   2. eggs are laid in the uterus
   3. nourishment is provided by the mother
   4. eggs are laid outside the body

Answer 1

1. viviparous animals
2. give birth to young ones
3. can be external or internal
4. uterus
5. eggs are laid outside the body