Question

Offsprings of oviparous animals are at greater risk of survival as compared to those of viviparous animals because

• A. proper embryonic care and protection is absent
• B. embryo does not develop completely
• C. progenies are of smaller size
• D. genetic variations do not occur

Answer 1

Answer: (A)

proper embryonic care and protection is absent

Answer 2

In oviparous animals such as reptiles and birds, fertilised eggs are covered by hard calcareous shell and are laid in a safe place. After incubation period, young ones hatch out. In viviparous animals such as majority of mammals including human beings, the zygote develops into a young one inside the body of the female individual. After a certain growth, the young ones are delivered by the female individual. Due to proper care and protection, the chances of survival of young ones are more in viviparous individuals.