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no they do not. Mammals are divided into three groups; monotremes, marsupials, and placental mammals.
What else can I help you with?
Does the female dog lose a placenta after the birth?
Yes they do, all Placental mammals do.
Do dolphions have placenta?
Dolphins are mammals, give live birth, so also have a placenta.
Do tuna have placenta?
No, tuna fish do not have placentas. The placenta is part of mammal physiology, and fish are not mammals.
What is the function of placental in mammals?
The placenta is for nourishing the embryo.
One characteristic of placental mammals?
The young are nourished in the womb by the placenta.
Is a placental mammal a pouched mammal?
No, pouched mammals do not have placenta.
Do humans have a placenta?
no they do not. Mammals are divided into three groups; monotremes, marsupials, and placental mammals.
What organ do pregnant monotremes and marsupials lack?
A complex placenta. Marsupials have a choriovitelline placenta, but it is not as well-developed as the placentas of placental mammals.
Where do most mammals grow before they're born?
Most mammals are placental mammals: they develop in a placenta before birth. Marsupials also develop in a placenta, but they are delivered much earlier and the placenta is less developed. Monotremes develop within an egg, which is kept inside the mother for some time before it is laid. It hatches several days later.
What form of reproduction does wolves use?
Placental, same as all mammals, and pretty much Identical to us. (the number of layers in the placenta is different)
What absorbs oxygen and food from the mothers blood in placenta mammals?
I THINK THAT A monotremes is the answer.
Is a feline mammal the same as a placental mammal?
Yes and No. Felines are animals closely related to cats (technically excluding the "great cats" ... lions, tigers, etc. ... who are felids but not felines). Placental mammals are those whose gestation includes a placenta (basically, all mammals except the monotremes and marsupials).All felines are placental mammals, but not all placental mammals are felines. Humans, for instance, are also placental mammals.Placental mammals bear live young, (that includes cats) that are nourished in the mother's uterus through the embryonic organ (placenta) attached to the uterus wall. The term "placental mammals" is somewhat misleading because marsupials also have placentae but it is short lived in its part for fetal nourishment. In eutherians, as "placental mammals" are known scientifically depend on the placenta during the full developmental stage of the fetus.
