GENERAL KNOWLEDGE

Detailed explanation-1: -Internal fertilization is characterized by sperm fertilizing the egg within the female; the three methods include: oviparity (egg laid outside female body), ovoviparity (egg held within female), and viviparity (development within female followed by live birth).

Detailed explanation-2: -Ovoviviparous animals produce eggs and keep them inside the mother’s body until the fetus develops completely and is ready to hatch. On the other hand, viviparous animals directly give birth to young ones. So, this is the key difference between oviparity ovoviviparity and viviparity.

Detailed explanation-3: -may be oviparous (lay eggs), ovoviparous (retain the eggs in the body until they hatch), or viviparous (have a direct tissue connection with the developing embryos and give birth to live young).