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The development of the chick takes place in a period of 21 days

Sagot :

Answer:

On the fourteenth day, the claws are forming and the embryo is moving into position for hatching. After twenty days, the chick is in the hatching position, the beak has pierced the air cell, and pulmonary respiration has begun. After 21 days of incubation, the chick finally begins its escape from the shell

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