Difference Between Internal and External Fertilization

Internal Fertilization v/s External Fertilization

S.No.Internal FertilizationExternal Fertilization
1.The fusion of male and female gametes takes place inside the body of the female animalThe fusion of gametes takes place outside the body of the female animal
2.The egg may be covered with a hard cellThe egg is either not covered with a hard cell or if covered then it has a hole called the micropyle
3.It takes place in ovoviviparous or viviparous animalsIt takes place in oviparous animals
Difference Between Internal and External Fertilization

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