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No, chicken eggs do not have a heartbeat. The embryo inside the egg develops a heartbeat only after a few days of incubation.
The wall of the uterus.
In mammals, the embryo develops with in the specialised part of the oviduct .
In plants embryo develops in new seedling and in animals it develops into feotus which later develops into baby
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The embryo develops in the uterus of the mother.
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When you crack open an egg you will see the yellow part called the yolk. The yolk is surrounded by the clear white substance called albumen. As the embryo develops within the shell, it is protected by the albumen.
Correct, the embryo develops in the womb, also known as the uterus.
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The wall of the uterus.
It develops as the embryo develops into a fetus, since you are born with these defenses.