Question

what is placenta? Give the significance of placenta

Answer 1

placenta is the one which is important for us as it will nourish the embryo in the womb.

Answer 2

The placenta is a flattened circular organ in the uterus of pregnant mammals that nourishes and maintains the fetus through the umbilical cord.
SIGNIFICANCE :
It allow nutrient uptake, waste elimination, and gas exchange via the mother's blood supply; to fight against internal infection; and to produce hormones which support pregnancy. 
The placenta provides oxygen and nutrients to growing fetuses and removes waste products from the fetus's blood.