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in hens fertilization takes place internally but they do not give birth to young ones chicks are born through eggs explain |
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Answer» When the hard shell is completely formed AROUND the developing EMBRYO, the hen lays the egg. the embryo takes about THREE week to develop into a chick. the hen provides sufficient warmth to the egg by SITTING on the egg . During this period ( called incubation) the chick develops inside the egg. After the chick is completely developed it brust open the egg shell. |
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