Frog and fishes lay hundreds of eggs at a time. why do you think they must lay so many eggs?
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Animals like frogs and fish lay hundreds of eggs and release millions of sperms. ... This is because the eggs and sperms get exposed to water movement, wind and rainfall.
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FROG AND FISHES LAYS HUNDREDS OF EGGS DUE TO THESE REASONS -
- DUE TO CLIMATIC CONDITION ALL DOESN'T TO GERMINATE.
- SOME BECOMES FOOD OF ANIMALS LIVING IN WATER.
- THEY ARE CARRIED AWAY BY WATER AND DOESN'T GET GERMINATED.
- ALSO AFTER GERMINATION ALL TADPOLE ARE NOT ABLE TO BE CONVERTED INTO FROGS DUE TO LACK OF IODINE (THYROXINE)
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