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How do birds develop without a placenta that links them to its mothers blood supply?
Wiki User
∙ 9y ago
Instead of getting oxygen and nutrients directly from a mother, the bird egg contains these elements in the materials found around the bird embryo. Reptiles and amphibians have similar processes for supplying the embryo.
Wiki User
∙ 9y ago
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How do tadpoles develop without a placenta that links them to its mothers blood supply?
They develop by feeding from the yolk of the egg that the frog has laid and that is the equivalent of a placenta.
Does a baby get hurgry inside his mother belly?
No, the baby is supplied with food in its blood via the placenta, the placenta is connected to the mother's blood supply and the baby's food gets to it from the mothers blood.
What process moves nutrients from the mother to developing foetus?
In mammals this is done by the placenta, through which the foetal blood flows and exchanges nutrients/gasses with the mothers blood supply.
What is the source of the embryo's food?
An embryo plugs into it's Mothers blood supply through the placenta. The embryo gets all it's nutrition and oxgen through this connection.
What can supply nourishment to an embryo?
PLACENTA
Blood through the umbilical cord to the placenta?
Yes your blood supply is shared with your baby though the placenta.
How does an embryo get oxygen and nutrients from its mom?
A mammalian embryo gets oxygen and nutrients from it mother by means of the umbilical cord which extends the embryonic blood supply into the placenta embedded in the mothers womb. The blood supply in the placenta is close to that of the mother and oxygen and nutrients diffuse across from the mother to the baby. With egg laying animals the nutrients are supply to the embryo as the yolk part of the egg and oxygen is supplied by diffusion through the permeable shell and shell membrane
Does the placenta have a good blood supply?
False- The placenta supplies the baby with the mother's blood during development.
How could a country develop its economy without a large supply of mineral resources?
A country can develop its economy without a large number of mineral resources by, Exporting Manufactured goods to other countrys.
Is The sole responsibility of the placenta is to supply the fetus with oxygen and nutrients?
False
Does the ovaries in the women make the placenta?
No - the placenta grows around the fetus in the uterus as part of the pregnancy. The ovaries just supply hormones and the egg that gets fertilized.
How could a country develop economy without a large supply of mineral resources?
They could be successful in manufacturing, industry, and tourism.
