Answer:
The source of life for fetus is the placenta which is connected by the umbilical cord.
Step-by-step explanation:
The placenta is a temporary organ that during pregnacy connects the fetus and the mother trough the umbilical cord. It allows the fetus to recieve nutrients. It also helps to produce gas exchange, waste elimination and thermoregulation.
Placenta also participate as an endocrine organ (releasing HCG, Progesterone, Estrogen, human placental lactogen) and an immunity organ (allowing IgG antibodies to pass through).