Why animals which undergo external fertilisation lay hundreds if eggs.
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male and female animal release their sperms and eggs in water where fertilisation take place by collision between sperm and eggs. ... Though the animals like frog and fish which undergo external fertilisation, lay hundreds of eggs , all the eggs do not get fertilised and hence do not develop into new frogs.
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male and female animal release their sperms and eggs in water where fertilisation take place by collision between sperm and eggs. ... Though the animals like frog and fish whichundergo external fertilisation, lay hundreds of eggs , all the eggs do not get fertilised and hence do not develop into new frogs.
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