Question

answer the 21 question.​

Answer 1

WHEN THE FITAS IS IN URETAS , A COVERING LIKE A PLASTIC IS FORMED ON IT THIS IS CALLED PLACENTA

BSICALLY PROVIDES PROTECTION MAYBE
BUT THE MAIN FUNCTION IS THAT IT CONNECTS THE AMBILICAL CHORD TO THE BABY

Answer 2

hey there, here u go.......
After zygote implantation, there is a development of a disc like tissue known as Placenta which connects the mother and the Foetus through umbilical cord.
The embryo gets nourishment inside the mother's body by a disc-like tissue placenta which gets developed between the uterus wall and the embryo during the implantation.
The nutrients, Oxygen and waste products are exchanged through this tissue.