short note on hens egg
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female chickens have a menustral cycle that can be daily during certain times of the year.
like women ,hens have ovaries.
during hens cycle ,an ovary sends a yolk on its path .the yolks forms what we know of as an "egg white" as it moves through the reproductive tract into the shell gland .the snell take about 21 hours to form and "cluck !"-out pops an egg.
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