Explain where the embryo stays till it is fully developed and also explain how its nutritional, respirational and excretional functions are carried out.
The embryo gets embedded in the wall of the uterus for further development. The embryo continues to develop in the uterus. It gradually develops the body parts such as hands, legs, head, eyes, ears, etc.
Nutrition in the womb is the process that delivers to the foetus what it needs to grow and develop into a healthy baby. A foetus receives its nutrition from the mother’s diet during pregnancy via the umbilical cord and placenta.
The placenta, which is part of the baby that attaches it to the womb, captures nutrients from the mother’s blood and transports them to the baby.
The respiration and excretion processes are also carried out by placenta only.