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Do the embryo develops inside the egg?
In birds and reptiles only .
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.
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.
What is when the yolk is where the embryo develops?
When the yolk is where the embryo develops, it is called telolecithal development. In this type of development, the yolk is concentrated at one pole of the egg, providing nutrients for the developing embryo. Examples of organisms that exhibit telolecithal development include birds and reptiles.
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.
What is an amniote?
An amniote is any of a variety of types of vertebrate which have an amnion - the sac in which an embryo is suspended - this includes mammals, birds, and reptiles.
What are some places an embryo can develop?
An embryo can develop in the uterus of mammals, including humans, as well as in eggs of birds, reptiles, and fish. In some species, embryos can also develop externally in structures like egg cases or pouches.
Membrane direclty under shell in birds?
The membrane directly under the shell in birds is called the shell membrane. It is a thin, transparent layer that provides additional protection to the developing embryo within the egg. The shell membrane is located just beneath the hard outer shell and helps to prevent dehydration and protect the embryo from harmful bacteria.
What has the author Lili Martin Pasternak written?
Lili Martin Pasternak has written: 'Heterogeneous induction in the chick embryo' -- subject(s): Embryology, Birds
What is yolk sac?
A yolk sac is a sac attached to an embryo, which provides early nourishment for bony fish, sharks, reptiles, birds, and primitive animals.
