Write three difference between oviparus and vivaparous animals

Dear Student 
 Oviparous  Viviparous 
Lay either fertilized or unfertilized eggs. Give birth to young ones.
The embryo receives nutrition from the yolk. The embryo receives nutrition from the mother.
The chance of survival is less.
​​​Ex. Birds , Reptiles, Amphibians .
​​​
The chance of survival is more.
Ex. Most Mammals.

Regards

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Viviparous
:Animal give birth to babies
:external fertilisation takes place
:chances of young ones is more
:Example-Mammals including human beings
Oviparous
:Animal that lay eggs
:Internal fertilisation Takes place
:chances of youngs ones is less
:Example-Frog, reptile etc.
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Thanks @ sankalp
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Mention not??
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