3. What is the one piece of the placenta is the organ occurred while the mother is pregnant, the channel for transmitted and blood. The nutrients And San copy over the mother baby
What is the first piece of placenta is an organ that occurred while pregnant. The channels of transmission of blood nutrients and fluids in the air. The mother of the fetus
The placenta is the placenta is the organ one occurred while pregnant mother As a channel for transmission of blood, nutrients, air and biological fluid, between a mother ลูกทารกในครรภ์.