Hens and frogs are both oviparous exhibiting different types of fertilisation. Explain.
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as hens produce each egg per month .but frogs produce large number of gamates because there is always chances of getteng washed or eaten by frog of the eggs so they exhibit different types of fertilization...
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Internal fertilization occurs in hens. Fertilized egg is enclosed in a protective shell covering in the hen's body and is laid outside for development.
In frogs, fertilization and development of zygote both takes place outside of their body, that is, external fertilization.
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