Question

Animal which give birth to the young ones are called _______________
A. Oviparous
B. Viviparous
C. Ovi-viviparous
D. None of these

Answer 1

Hint: The word parous is defined as bearing offspring’s in a specific manner. Some animals produce eggs and some animals give birth to young ones. Chances of survival in viviparous animals are much more than the oviparous animals.

Complete Answer:
In animals, outer treatment is a type of preparation where the sperm-egg combination takes place remotely, outside the female body. The undeveloped organism gives rise to and develops in the outer condition. While in interior treatment, the sperm-egg combination takes inside the female body. In any case, the advancement of undeveloped organisms may occur either inside or remotely. In respect of this, creatures are ordered into two, to be specific, oviparous and viviparous creatures.

Let us find the correct answer,
- Oviparous: The animals that lay eggs are defined as oviparous. The young ones are well protected inside the egg together with the yolk that provides nutrition to the growing embryo. The eggs after these are hatched outside the female body.
- Viviparous: Viviparous animals are defined as those where the young develop within the uterus and obtain nourishment before birth. They get essential nutrients from the mother’s blood through a yolk sac placenta.
- Ovi-viviparous: There are some animals in which the eggs hatch inside the animal's body and they give birth to the young ones. These animals are defined as ovoviviparous animals. The most common examples include sharks.

Our required option is B that is Viviparous.

Note: Oviparous animals show internal fertilization of eggs via copulation. These animals show no presence of umbilical cord therefore, the nourishment is obtained from yolk of the egg. When the yolk is depleted, mother provides additional nutrition in the form of unfertilized eggs and uterine secretions as well.