Question

Animals like fish and frog lays large no of eggs why

Answer 1

Animals like fish and frog lays large no of eggs because
- their eggs are more likely to be harmed by predators
- not all eggs get fertilised, some of them get drained away by the flow of water

Answer 2

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Though fish and frogs lay hundreds of eggs all the eggs do not get fertilized and develop into new individuals.

This is because the eggs 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 is necessary to ensure fertilization of at least a few of them.

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