Question

why do fish and frogs lay a hundreds of eggs whereas a hen lays one egg at a time ?

Answer 1

This might be because many eggs of fish and frog are eaten up by animals or are destroyed by nature so the no. of offspring is less wireless there is less probability of any damage to chicken egg so the hen produces less no. of egg.

Answer 2

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Though these animals lay hundreds of eggs and release millions of sperms, all the eggs do not get fertilized and develop into new individuals. This is because the eggs and sperms get exposed to water movement, wind and rainfall. Also, there are other animals in the pond which may feed on eggs. Thus, production of large number of eggs and sperms is necessary to ensure fertilization of at least a few of them.

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