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The mother is then pregnant. Its called a foetus.
It can if there is an unusual amount in the mother's environment. Anything that is in the blood of the mother is sent through the foetus, and anything discarded by the foetus is sent through the mother's bloodstream.
The foetus in embedded in fluid called amniotic fluid. Some times the foetus takes a breath in that fluid, just before the delivery. The result is disastrous. If the foetus is born with the fluid in the lungs, it is going to die in most of the cases. The foetus is getting all the oxygen and the nutrition from the mother. This is supplied through the placenta. So the lungs of the foetus are at rest in the womb of the mother.
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Carbon dioxide and other such waste gases diffuse from the foetus and across the placenta into the mother's blood. Urea (excretory product) also diffuses into the mother's blood. (The substances in bold will answer question).
The developing foetus gets everything it needs from the mother via the umbilical cord. That includes food and oxygen (which is dissolved in the mother's bloodstream). The umbilical cord performs a 'gas exchange' which removes waste gasses from the bloodstream of the foetus, and delivers fresh oxygen. The foetus doesn't need to breathe air to grow and survive. Once the baby is delivered, the placenta stops working, and the child take its first breath of air. From that moment, it's dependence on the mother's body stops.
The nutrients are absorbed through the placenta by the foetus. The foetus gets the oxygen and nutrition from the mother. The blood of the mother and foetus comes very close to each other in the placenta. Both are not mixed up. They are separated by very thin membrane. The surface area of the contact is very large as compared to the size of placenta.
it's the emberyo because its the blood from the baby is used for the mother so it is very good for a mother to use !
A growing foetus needs the cord because it gives the food and oxygen from the mother into the babyThe cord feeds the baby and gives the baby oxygen.All foetus's need a cord !
False. The mothers blood flows through the placenta in vessels next to the foetal blood that flows in separate vessels. Oxygen and nutrients can flow from the mothers blood into the foetus' blood and carbon dioxide and waste products can flow from the foetus' blood to the mother's blood through the vessel membranes, however the two bloods will never actually mix.
Because it shares blood and every cell in the mothers body.