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What organ serves as a respiratorydigestiveexcretory organ for the fetus?
the placenta
Why do kangaroos give birth to their young even before they are fully developed?
This feature is not restricted to kangaros. It is characteristic of all marsupials. The pouch serves a similar purpose to the uterus in placental mammals.
What organ serves as a respiratory digestive and excretory organ for the fetus?
placenta
What organ serves as a respiratory digestives excretory organ for the fetus?
The Placenta
What are the three purposes that a placenta serves for an embryo?
reproduction, gets rid of waste and nurishes
Pertaining to the navel?
Contemplating how to answer that. Mammals are born with an umbilical cord that connects the baby indirectly to the circulation of the mother via the placenta. Since the placenta is not needed after birth, neither is the connection from the baby to the placenta. The hole mostly closes up and leaves a navel.
What is the after birth?
The "after-birth" refers to the placenta, which is delivered 10-30 min after delivery of the baby. The placenta serves as the nutrient source for the baby in utero, so after delivery it is no longer needed and is therefore expelled.
Why do we have a belly button?
So, why do we have belly buttons? The answer lies in our origins. The belly button (or navel) is typically the body’s first scar, caused by the detachment of the umbilical cord after birth. All placental mammals have a belly button and before birth, it serves a very important purpose. Even after birth, the belly button can still have its uses.
What is the definition of penis?
the male genital organ of higher vertebrates, carrying the duct for the transfer of sperm during copulation. In humans and most other mammals, it consists largely of erectile tissue and serves also for the elimination of urine.
When is lactose produced?
It is produced during pregnancy, but produces by hormones and other general stuff in your body to make milk for the baby. To stop lactating in a bra, put dry cabbage in your bra.
Why is the yak helpful to the people?
it serves humans as a beast of burden
What orgon serves as a respiratory digestive organ for the fetus?
You have the organ called as placenta. 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.
