why do fish and frog produce large number of gametes ??
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Their mode of fertilization is external. They lay eggs in the water and there is a chance of destruction of these gametes by water current if they are in less quantity. So they lay more and more eggs in order to rule out the possibility of destruction of all eggs.
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Answer:
Their mode of fertilization is external. They lay eggs in the water and there is a chance of destruction of these gametes by water current if they are in less quantity. So they lay more and more eggs in order to rule out the possibility of destruction of all eggs.
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