Question

Statement 1: Viviparous animals give better protection to their offspring.
Statement 2: In viviparous animals, young ones, after attaining a certain state of growth, are delivered out of the body of the female organism.
a. Both statements 1 and 2 are correct
b. Statement 1 is correct but the statement 2 is incorrect
c. Statement 1 is incorrect but statement 2 is correct
d. Both statements 1 and 2 are incorrect

Answer 1

Hint: The viviparous animals are those animals which give birth to the young ones. The baby develops inside the mother's womb. It takes all the nutrition from the mother by the help of placenta. The development of embryos completes in specific time for different animals. This means that different animals have different gestation periods.

Complete answer:
The viviparous animals give birth to the young animals. Most of the mammals including human beings are the viviparous animals. The fusion of male and female gametes occurs by the process of fertilization. It occurs inside the females. This type of fertilization is called internal fertilization. The development of the zygote occurs inside the female. After the gestation period, females give birth to the young ones. The embryo obtains the nutrients directly from the mother and not the yolk. These young ones have more chances of survival than the oviparous animals.

The embryos of the viviparous animals are referred to as matrotrophy by which the embryo obtains the nutrients directly from the mother and the yolk.

Due to the internal fertilization, and development of the embryo inside the mother there are very less chances of death of the embryo. The mother feeds the baby the placenta during the gestation period and after full development of all the body organs, the baby delivers and this process is called as parturition. Even after some time of parturition, babies are fed by mother milk.

From this we know that both the statements 1 and 2 given in the question are correct.
Hence, the correct answer is option (A).

Note: In oviparous animals, the young ones hatch out from the eggs. The fertilized eggs are covered by the hard calcareous shell and are laid in a safe place. Reptiles and birds are the oviparous animals. The chances of survival of young ones of these animals are very less.