What are mammalian eggs?
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Mammalian eggs have very less amount of yolk, that's why eggs are oligolecithal & isolecithal or microlecithal & homolecithal. 0.1 mm is the usually size of mammalian eggs.
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Explanation:
Mammalian eggs
In placental mammals, the egg itself is void of yolk, but develops an umbilical cord from structures that in reptiles would form the yolk sac. Receiving nutrients from the mother, the fetus completes the development while inside the uterus.
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