Explain how chicks are born. How much time does the embryo present in hen’s egg take to develop into a chick (when provided sufficient warmth)?
ScienceClass 8ICSEAnswered 28 Mar 2026
Answer
Answer
As like humans, hens also undergo internal fertilization but, they do not give birth like human beings. After the fertilization, the zygote divides repeatedly to form embryo which travels through the oviduct. As it travels through many different protective layers are formed. The outermost layer of protection is the hard shell of the egg. During this process when the hard shell is completely done the hen lays the egg. Then the hen sits on the eggs to provide sufficient warmth to the eggs so that it develops from embryo to chick. The embryo takes about 3 weeks to develop into a complete chick.
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