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What else can I help you with?
What is the function of placental in mammals?
The placenta is for nourishing the embryo.
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.
Do all mammals have placenta?
no they do not. Mammals are divided into three groups; monotremes, marsupials, and placental mammals.
What Function of the placenta?
Both of these
Why can't humans lay eggs?
Humans are placental mammals, meaning that they develop with the embryo attached to a placenta that allows it to exchange waste and nutrients with the mother. The placenta would not be able to function inside an egg.
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.
Why would a miscarriage occur if the placenta was damaged?
If the placenta don't function the embryo will die.
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.
