why do fish and frog lay more number of eggs where as cow and human beings usually give birth to only one at a time
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why do fish and frog lay more number of eggs where as cow and human biengs usually give birth to only one at a time. ... So, their large numbers enables adequate number of eggs to get fertilized even if some eggs are destroyed. In case of humans and others, the process of fertilization occurs inside the body.
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Fishes n frogs lay thousands of egg at a time as their fertilization is external and many of their eggs get destroyed n damaged due to external fertilization and only some of them forms zygote ,this helps them to maintain their race whereas in mammals or human beings fertilization is internal and only one zygote is ..
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