Explain the terms oviparous and viviparous.

(N/A) Oviparous animals: These are animals that lay hard,calcareous-shelled eggs in a safe environment. After a period of incubation,the young ones hatch out. Examples include reptiles and birds.
Viviparous animals: These animals exhibit internal fertilization and development. The young ones develop inside the body of the female. After the completion of the gestation period,the female gives birth to the young ones. Examples include most mammals.