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No, only mammals which develop inside the mother's womb depend on a placenta for their growth, and therefore have an umbilical cord. (There is no umbilical cord involved in the development of those few mammals who lay eggs or whose babies develop in the mother's pouch.) Since birds are hatched from eggs, no placenta-umbilical cord mechanism is involved. Most of a fetal bird's development takes place outside its mother's body, in the egg.
Marsupial embryos do have umbilical cords, as the baby must spend some time developing in the uterus prior to birth, even though most of their development takes place in the pouch. In the pouch, they no longer require an umbilical cord as the teat swells in their mouth, adhering them firmly, so they can receive all the nutrients they need. Monotremes do not have umbilical cords, as they are hatched from eggs.
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What is the membrane that protects and cushion embryo?
The Amniotic Membrane.
What is amniotic membrane?
The thin tissue that creates the walls of the amniotic sac.
What is the membrane of fluid that holds the fetus in the mothers womb called?
The membrane is called the Amniotic Sac, and the fluid is the Amniotic Fluid
The developing embryo is surrounded by a protective membrane called the?
amniotic sac :)
How amniotic sac and placenta alike?
are membrane that helps
Show you how to use a amniotic membrane perforator?
To use an amniotic membrane perforator: Hold the perforator like a pen with the sharp tip facing down. Gently press the tip onto the desired location on the amniotic membrane (usually during a surgical procedure) to create a controlled perforation. Ensure proper technique and precision to avoid any damage to the underlying tissues.
What is the membrane that protects a child in a mothers womb?
the answer is vagina. this can also called birth canal. Amniotic sack comes to mind as the membrane. The birth canal is a complex organ.
Is a chicken egg amniotic?
Yes, a chicken egg is considered amniotic because it contains an amniotic membrane that surrounds and protects the developing embryo inside the egg. This membrane helps provide a suitable environment for the embryo to grow and develop.
Do rhesus monkeys have amniotic sacs?
Rhesus monkeys, like all primates belong to the placental group of mammals. They give birth to live young which are nourished before birth by the placenta and protected by the amniotic sac.
What is the membrane that protects an unborn child?
amniotic sac
What is a membrane that transports material between mother and fetus?
amniotic sack
What is the chorionic membrane?
The chorionic membrane is a thin, outermost membrane that surrounds the fetus in the womb. It is composed of layers of cells derived from both the embryo and the mother and plays a role in the exchange of nutrients and waste between the fetus and the mother. The chorionic membrane eventually fuses with the amniotic membrane to form the amniotic sac.
