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What is the source of food for the growing embryo inside the eggs of birds?
Wiki User
∙ 14y ago
It's a sack and not an egg but the primary food source, the only one, is the placenta and the nutrients go via the umbilical cord.
Emiliano Torp
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Do the embryo develops inside the egg?
In birds and reptiles only .
What is a birds embryo?
An egg.
What embryo do not have an amnion?
The embryo that does not have an amnion is the human embryo. It is a membrane that covers the embryo when first formed. Mammals, reptiles and birds have this feature.
How are baby birds made in the eggshell?
Initial development of the egg, including the embryo, begins inside the mother bird after she mates with a male. The embryo, yolk, and shell initially form together. After the egg is laid the bird embryo continues to grow, drawing the nutrients it needs from the yolk.
How are turtle eggs nurtured?
The same way as a birds egg - with a yolk sac. The embryo feeds off the yolk-sac while it's developing inside the egg.
Where does the embryo get nutrients from?
In mammals through placenta and in reptiles and birds from yolk .
It has been 21 days and fluid is starting to come out a egg does that mean it is going to hatch?
No, That means it is infected with bacteria and is about to explode. If you had candled them earlier you would have noticed there wasn't an embryo growing inside and could have discarded it then. The best thing to do is to carefully cover it with a damp washcloth and remove if from the incubatorbecause if it explodes most of the birds that hatch will die.
Source of body warmth of reptiles?
They create it as part of their metabolism, the activities of living, growing, and moving.
What has the author AlexisLawrence Romanoff written?
AlexisLawrence Romanoff has written: 'Pathogenesis of the avian embryo' -- subject(s): Abnormalities (Animals), Abnormities and deformities, Birds, Chick Embryo, Embryobiology, Fetus
The shell of a birds egg is porus this means it has microscopic holes in it why does it need to be porus?
So the embryo can breathe!!
What are the similarities of human and chicken embryo?
Mammals, birds, and reptiles all derive from a single common ancestor.
Do birds have bones inside of bones?
No, they do not.
