Practicing Success
Which of the following statement is correct regarding viviparous animals ? a- In viviparous animals, the zygote develops into a young one outside the body of the female organism. b- The young ones are delivered out of the body of the female organism. c- Proper embryonic care and protection are provided. d- The chances of survival of young ones is lower. |
a and c b and c a and d c and d |
b and c |
The correct answer is Option (2) -b and c Animals are categorised into oviparous and viviparous based on whether the development of the zygote takes place outside the body of the female parent or inside, i.e., whether they lay fertilised/unfertilised eggs or give birth to young ones. On the other hand, in viviparous animals (majority of mammals including human beings), the zygote develops into a young one inside the body of the female organism. After attaining a certain stage of growth, the young ones are delivered out of the body of the female organism. Because of proper embryonic care and protection, the chances of survival of young ones is greater in viviparous organisms |